The Lewis structure of AsO showing 2 lone pairs is as follows:
O
As
/
X X (where X represents a lone pair)
The molecular geometry of AsO is trigonal planar. The central As atom is hybridized with sp2 hybridization. The approximate bond angles in AsO are 120 degrees. The AsO ion is polar.
A Lewis structure, also known as a Lewis dot diagram, is a way to represent the chemical bonding in a molecule. It uses dots (also called electron dots or Lewis dots) to show the valence electrons on an atom, and lines to show the bonds between atoms. The goal of drawing a Lewis structure is to use the valence electrons of the atoms in a molecule to form the most stable arrangement of atoms, that is to say, to achieve the octet rule where each atom has 8 valence electrons in its outermost shell.
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Q 5.67: Identify the relationship between the following compounds.
Et
Et
HOH2CH
Br
HOW
CH3
Br
A different compounds
B constitutional isomers
C diastereomers
D enantiomers
Compound I and II are enantiomers .
In general, Enantiomers are considered as a pair of molecules that is present in two forms or mirror images of one another but they are not superimposed upon each other. so, Compounds that are mirror images of each other and are not superimposable are termed enantiomers.
Hence, the easiest way to find an enantiomer is by analyzing the molecules if they are mirror images of each other. Enantiomers must be mirror images. Other important properties of Enantiomers includes that they should have identical melting and boiling points, density, dissociation strengths and solubilities.
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One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chle anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200 mL sample of groundwater known to be contaminated with tin(II) chloride, which would react with silver nitrate solut like this: Snc, () + 2 AgNO,(aq) 2 AgCl(s) + Sn (NO), (aq) The chemist adds 37.0 mm silver ritrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She fir she has collected 7.1 mg of silver chloride Calculate the concentration of tin(II) chloride contaminant in the original groundwater sample. Round your answer to 2 significant digits.
tin(II) chloride contamination levels in the initial groundwater sample
[tex]$2.4 \times 10^{\wedge}\{-4\}$ \\[/tex][tex]M Fe(II) or $1.3 \times 10^{\wedge}\{-2\} \mathrm{mg} \mathrm{Fe}(\mathrm{II}) / \mathrm{mL}$[/tex]
What is the concentration of ground water ?Titrating a sample of solution is one method the U.S. Environmental Protection Agency (EPA) uses to test for chloride pollutants in water. Silver cations and any chloride anions in solution combine to form a dazzling white precipitate of silver chloride.
If an EPA chemist analyzes a 200 mL sample of groundwater that is known to contain tin(II) chloride, the result would be as follows: Sn (NO) + 2 AgNO, (aq) + 2 AgCl (aq) As soon as silver chloride starts to form, the chemist stops adding 37.0 mm of silver ritrate solution to the sample. After that, she weights the precipitate after washing and drying it. In all, she possesses 7.1 milligrams of silver chloride.
According with the stoichiometry of the reaction:
[tex]$6.9 \mathrm{mgAgCl}\left(\frac{1 \mathrm{mmol} \mathrm{AgCl}}{143.32 \mathrm{mgAgCl}}\right)\left(\frac{1 \mathrm{mmolFeCl}}{1 \mathrm{mmol} \mathrm{AgCl}}\right)\left(\frac{1 \mathrm{mmolFe}}{1 \mathrm{mmolFeCl}}\right)=0.048144 \mathrm{mmolFe}(\mathrm{II})$[/tex]
Now, we divide by the volume of the aliquo
[tex]$\frac{0.048144 \mathrm{mmolFe}(I I)}{200 \mathrm{mLsample}}=2.4 x 10^{-4} \mathrm{MFe}(I I)$[/tex]
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Mass of [Co(NH3)5Cl]Cl2 used: 0.9785 g
Mass of [Co(NH3)5ONO]Cl2 obtained via synthesis: 0.5893g
Reaction:
[CO(NH3)5Cl]2+
+
H2O
[CO(NH3)5H2O]3+
+ CI
[CO(NH3)sH2O]3+
+ NO2
[CO(NH3).ONO]2+
+
H2O
Calculate percentage yield of final product: [Co(NH3)5ONO]Cl2
The percentage yield is the same as the theoretical yield. We got it equal to 2.137, which is equal to 85%.
Calculate percentage yield of final product: [Co(NH3)5ONO]Cl2?
Yield is calculated as: Yield = Net Realized Return / Principal Amount. For example, the gains and return on stock investments can come in two forms. First, it can be in terms of price rise, where an investor purchases a stock at $100 per share and after a year they sell it for $120.The low-yield bond is better for the investor who wants a virtually risk-free asset, or one who is hedging a mixed portfolio by keeping a portion of it in a low-risk asset. The high-yield bond is better for the investor who is willing to accept a degree of risk in return for a higher return.The three key types of yield curves include normal, inverted, and flat. Upward sloping (also known as normal yield curves) is where longer-term bonds have higher yields than short-term ones.To learn more about final product refers to:
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atoms of sulfur have almost exactly double the mass of atoms of oxygen. a compound is 50% sulfur and 50% oxygen by mass. its simplest formula is:
The empirical formula, which may be expressed as SO2 in its simplest form, is S1O2, in accordance with the query.
What is a use for sulfur?Sulfuric acid, that has numerous uses in many industries, is frequently made from sulfur. In instance, lead-acid batteries and fertiliser are made with sulfuric acid. Sulfur is also utilized to make inorganic chemicals, explosives, glass, cement, and matches.
Assume by weight
50g of S and 50g of O
50g/32g/mole = 1.56mole of S
50g/16g/mole = 3.12mole of O
Multiply each molar quantity by 2/3
S is 1 and O is 2
So empirical formula is SO2
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A 10.00-mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5056 M NaOH, and 16.63 mL is required to reach the endpoint. (a) What is the molarity of the acetic acid
The molarity of the acetic acid is 0.8319 M.
The molarity of acetic acid in a 10.00-mL sample of vinegar can be determined by titrating the sample with 0.5056 M [tex]NaOH[/tex]. It took 16.63 mL of the [tex]NaOH[/tex] solution to reach the endpoint. To calculate the molarity of the acetic acid, the following equation can be used:
Molarity ([tex]HC_{2}H_{3}O_{2}[/tex]) = (Vol. x Molarity [tex]NaOH[/tex]) / Vol. [tex]HC_{2}H_{3}O_{2}[/tex]
Therefore, Molarity ([tex]HC_{2}H_{3}O_{2}[/tex]) = (16.63[tex]ml[/tex] x 0.5056 [tex]M[/tex]) / 10.00[tex]ml[/tex]
Molarity ([tex]HC_{2} H_{3} O_{2}[/tex]) = 0.8319M
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Place these hydrocarbons in order of decreasing boiling point. Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
hexadecane, C16H34
paraffin, C25H52
octane, C8H18
2,2,4-trimethylpentane, C8H18
propane, C2H8
(even using the picture is enough, but looking up boiling points works also)
The hydrocarbons in order of decreasing boiling point are as follows:
Paraffin > Hexadecane > Octane> Hexane > 2,2-dimethylbutane > Propane
The order of strengths of intermolecular forces is: ion-ion > H-bonding > dipole-dipole > London dispersion . Compounds with more potent intermolecular forces have better boiling points. Increased branching decreases the intermolecular dispersion forces among hydrocarbon molecules. As a result, it takes much less energy (and heat) to triumph over those forces, ensuing in a decrease boiling point.
Therefore, for the given hydrocarbons, the order of decreasing boiling point will be: Paraffin > Hexadecane > Octane> Hexane > 2,2-dimethylbutane > Propane
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what, if any, are the spectator ions when aqueous solutions of hbr and rboh neutralize each other?
The spectator ions oh HBr and RbOH are [tex]Rb^{+} andBr^{-}[/tex].
A chemical solution in which water serves as the solvent is known as an aqueous solution. The dissolved molecules and ions that make up the solutes are encircled by water molecules. An aqueous solution is indicated by appending the letters (aq) to a chemical formula.
Now, Break down all the water components into the appropriate ions to obtain the entire ionic equation.
The complete ionic equation is so
[tex]H^{+} +Br^{-}+Rb^{+}+OH^{-}- > Rb^{+}+Br^{-}+H_{2}O[/tex]
Now, to finally get the ionic equation, now remove the ions which are common from both sides
and then the ions which remain are [tex]Rb^{+} andBr^{-}[/tex].
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An experiment is described below.
A large field at the base of a mountain becomes flooded when heavy rains in the mountains cause a stream to overflow. Each time the flooding occurs, more soil washes away. The owners of the land want to perform an experiment to see if different types of plants could help reduce soil erosion. They choose five areas of ground that are the same size, the same distance from the stream, have the same slope and the same kind of soil, and receive the same amount of sunlight. The type of plant planted in each area is different for each of the five areas. Measurements of soil erosion will be made each time flooding occurs. The results will be compared after six months. Which hypothesis is being tested in this experiment?
The issue of soil erosion can be greatly reduced by plantation. The range of prevention depend on the type of plant also. Hence, the possible hypothesis can be c.
What is a hypothesis?A hypothesis is a scientific statement that make the prediction on a problem based on observations and scientific records.
Soil erosion is the process of depriving soil from the ground through natural calamities such as flood, earth quake, etc. Deforestation is the significant reason of soil erosion
Planting more tress and shrubs greatly helps to reduce the erosion of soil. Their roots adhered to the soil and protect the soil beneath in the ground itself.
The prevention of erosion by plants also depends on the plant type. Because, the roots, and the type of attachment to the soil vary in each type of plant. Hence, option c is correct.
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Your question is missing the options. The most probable options are given below:
a. Soil erosion is affected by the strength of the wind.
b. Flooded areas have greater soil erosion than areas that are not flooded.
c. Some types of plants reduce soil erosion more than others.
d. Some types of soil are more easily eroded.
A metal that forms an oxide of formula R2O3. O cd O Sb О Ті O Sn
The metal that forms an oxide of formula R2O3 would be Tin (Sn). Tin (Sn) is a chemical element with the symbol Sn and atomic number 50.
It is a post-transition metal in group 14 of the periodic table. Tin forms an oxide with the formula SnO2. When heated, it oxidizes to form an oxide with the formula R2O3, which is SnO3.
The metal that forms an oxide with the formula R2O3 is Tin (Sn).
The metal that forms an oxide of formula R2O3 would be Tin (Sn). Tin (Sn) is a chemical element with the symbol Sn and atomic number 50.
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A) Draw a Lewis diagram for SO2F2 in which all atoms have a formal charge of zero .
B) Draw a Lewis structure for SO2F2 in which the octet rule is satisfied on all atoms and show all NONZERO formal charges on all atoms.
C) Which structure would best represent bonding in the molecule? Smallest formal charges or octet rule satisfied for all atoms?
32 valence electrons we can calculate how many electrons can be distributed throughout the molecule by adding up the valence electrons of all the atoms.
How many electrons of valence do you think SO2F2 has?32 valence electrons We can calculate how many electrons can be distributed throughout the molecule by adding up the valence electrons of all the atoms, S = 6 + (6 x 2) + (7 x 2) = 32 valence electrons overall.The periodic table's third period, which includes S, allows the sulphur atom to increase its octet, which contains more than 8 electrons. In light of the octet rule, socl2 is a stable chemical.Due to the fact that formal charge correctness is typically more guaranteed and octet rule has exceptions, formal charge accuracy should be given priority over having a full octet.To learn more about valence electrons refer to:
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Which two pieces of protective equipment are most important for preventing chemicals from spilling on skin
c. lab coat and gloves two pieces of protective equipment are most important for preventing chemicals from spilling on skin
The body's largest organ is the skin. The integumentary system is composed of the skin and its analogues (hair, nails, perspiration, and oil glands). The skin's primary role is protection. It safeguards the body against environmental dangers like bacteria, chemicals, and temperature. The epidermis is the layer of skin that is visible. The softer inner layers are safeguarded by this. A number of cell "sheets" make up the epidermis. New epidermal cells are created on the bottom sheet. New skin cells are pushed forward to replace those that are being shed off the surface along with old, dead skin cells.
Which two pieces of protective equipment are most important for preventing chemicals from spilling on skin?
a. goggles and first aid kit
b. safety shower and eye wash station
c. lab coat and gloves
d. gloves and fume hood
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There is an acidic solution in a beaker. What species can be found in the beaker besides water molecule
O both H30* and OH", but [OH-] > [H30+1
O H30+ only
O OH only
O both H30and OH", but [H301> [OH]
The species H30* and OH are also present in the beaker along with the water molecule, making option a correct. In contrast, a beaker of acidic solution raises [OH-] over [H30+1].
To determine acidic solution is, the pH is an important parameter. The pH determines how many hydrogen ions are present in the solution. The pH of 7 distinguishes between neutral and acidic solutions. The pH scale displays basic solutions above 7, and acidic ones below 7. Chemical bonds, also known as attractive forces, hold two or more atoms together to form molecules, which, depending on the context, may or may not also include ions.
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What type(s) of intermolecular forces are expected between BeCl2 molecules? ball & sticky + labels Indicate with a Y (yes) or an N (no) which apply. dipole forces induced dipole forces hydrogen bonding
Hydrogen iodide (HI) is a diatomic molecule belonging to the hydrogen halide family. It exists as a colorless gas with a pungent odor at room temperature.
Explain about BeCl2 molecules?Beryllium chloride, BeCl2, is a solid substance consisting of long (essentially infinite) chains of atoms with Cl atoms in bridge positions. However, if the solid is heated, it forms a vapor of BeCl2 molecules.BeCl2 molecular geometry is said to be a linear one with a bond angle of 180o. It is a non-polar molecule because they have less attraction between each other.Beryllium chloride appears as white or yellow crystals, soluble in many polar solvents such as alcohol, ether, benzene, and pyridine. It has a chemical formula of BeCl2.In this tutorial, we will discuss Beryllium chloride (BeCl2) lewis structure, molecular geometry, electron geometry, hybridization, polar or nonpolar, its bond angle, etc.Beryllium chloride has a hexagonal crystal structure. BeCl2 is prepared by direct reaction of elemental beryllium with chlorine at high temperatures.⇒ Be + Cl2 → BeCl2To learn more about BeCl2 molecules refer to:
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Which one of the following is a strong acid? A) HNO2 B) HE C) HCIO4 D) HC2H3O2
The acid that is the strongest among the given options is HClO4. It is a strong acid which means it fully dissociates into H+ and ClO4- in water solution.
HNO2 is a weak acid. It only partially dissociates in water solution. HE is not a chemical compound, its not a acid. HC2H3O2 is a weak acid, also known as acetic acid.An acid is a type of chemical compound that can donate protons (H+) to solutions. When an acid is dissolved in water, it dissociates, or breaks apart, into its component ions. For example, when hydrochloric acid (HCl) is dissolved in water, it dissociates into H+ ions and Cl- ions. The ability of an acid to donate protons is known as acidity. Acids can be classified into two main categories: strong acids and weak acids.A strong acid is an acid that dissociates almost completely in water solution, meaning that it releases a large number of protons into the solution. Examples of strong acids include hydrochloric acid (HCl), sulfuric acid (H2SO4) and nitric acid (HNO3). A weak acid is an acid that dissociates only partially in water solution, meaning that it releases a relatively small number of protons into the solution. Examples of weak acids include acetic acid (CH3COOH) and carbonic acid (H2CO3).
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The tragic death of Michael Jackson occurred in June of 2009. The following statements were taken from his autopsy report
as the manner, cause & mechanism of death. Which is the cause of death?
I acute propafol intoxication
Il homicide
III respiratory arrest
AI
4x B 11
4x C
4x D
none of these
Answer:
acute propafol intoxication
Explanation:
acute propafol intoxication
How does the electron-cloud model describe electrons?
Electron-cloud model shows a many electrons system where the nucleus is surrounded by a cloud of electrons.
What is the electron-cloud model?It shows a many electrons structure where the nucleus is nearby a cloud of electrons. He based it on Heisenberg's variability principle and quantum mechanics. It explains that there the electron has no required location however we can only give the around where the electron cloud would be most likely found.
The electron cloud has both kinetic energy and momentum, yet there is no motion. The cloud is superbly static. The electron does not "orbit" the proton at all – it surrounds it like a fog.
So we can conclude that an electron cloud is an area all over the nucleus of an atom where electrons are most likely to be found.
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How do you think the graph might change if the temperature was held constant at a high temperature, say 400 K?
The graph plotted between pressure and volume to be rectangular hyperbola. The volume at each added mass will increase and the graph will be shifted up at a high temperature 400K.
Why does volume increase as temperature rises?The atoms in your material vibrate more as a result of a rise in temperature, which raises internal energy. As a result, they move farther from their equilibrium position and require more volume or space to do so. The object's overall volume will increase.
What connection exists between volume and temperature?In layman's words, the volume of a fixed mass of gas is exactly proportional to temperature at constant pressure. The volume of a fixed mass of a gas reduces when it is cooled and increases when the temperature is raised.
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Plot a point for each possible mass to create a graph showing the relation between pressure and volume.
How do you think the graph might change if the temperature was held constant at a high temperature, say 400 K?
What is the volume of 0.58 moles
of H2 gas at STP?
The volume of 0.58 moles of H2 gas at STP is 14.13 liters.
The volume of a gas is directly proportional to the number of moles of the gas present, if the temperature and pressure are held constant.
STP stands for "standard temperature and pressure," which is defined as a temperature of 0 degrees Celsius (273.15 K) and a pressure of 1 atmosphere (101.325 kPa). Under these conditions, the volume of one mole of any gas is known as the molar volume and is equal to 24.45 L.
To calculate the volume of 0.58 moles of H2 gas at STP, we can use the equation:
Volume = molar volume x moles
Plugging in the values, we get:
Volume = 24.45 L x 0.58 moles = 14.13 L
So the volume of 0.58 moles of H2 gas at STP is 14.13 liters.
This is a result of the direct proportionality between the moles and the volume at STP.
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Answer:
13
Explanation: correct on acellus
Which three Lewis electron dot structures, are correctly drawn for the compound or ion shown? Check the box in front of the chemical formula for each correctly drawn structure. Recall: ionic compounds do not have covalent bonds.
NF3 NaF ClO-1 PO2-1 SiHF3
Please just write out the Lewis Dot Structure for each and I will compare with the pictures that I am given.
Shared pairs of electrons are drawn as lines between atoms, while lone pairs of electrons are drawn as dots next to atoms.
Which three Lewis electron dot structures, are correct?
Determine the total number of valence electrons in the molecule or ion. ...Arrange the atoms to show specific connections. ...Place a bonding pair of electrons between each pair of adjacent atoms to give a single bond.Lewis dot diagrams show the atoms in a molecule, be it a neutral compound or a charged ion. They also show the number, position and arrangement of the atoms' valence electrons, whilst assuming that all inner electron shells are complete. Specifically, they show any bonded pairs or lone pairs of electrons.For example, the Lewis symbol of carbon depicts a “C' surrounded by 4 valence electrons because carbon has an electron configuration of 1s22s22p2. The Lewis symbol for carbon: Each of the four valence electrons is represented as a dot.The number of dots equals the number of valence electrons in the atom. These dots are arranged to the right and left and above and below the symbol, with no more than two dots on a side. (It does not matter what order the positions are used.)To learn more about chemical formula refers to:
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Condensed structural formulas of glycine and serine Condensed structural formulas of dipeptides Condensed structural formulas of the reactants and products for the hydrolysis of serylglycine Condensed structural formula for the tripeptide
Condensed structural formulas are written in a single line to save space and make them easier and faster to type out. They display the atoms' positions similarly to a structural formula.
What is the Condensed structural formula of glycine and serine ?The only amino acid that has one carbon atom is glycine. [tex]$-\mathrm{COOH}$[/tex] plus one [tex]$-\mathrm{NH}_2$[/tex] group that is connected to an alpha-carbon and contains two hydrogens. - [tex]$\mathrm{COOH}$[/tex] Serine is made up of an a-carbon, one hydrogen, and one [tex]$-\mathrm{NH}_2$[/tex] group as well as one [tex]$-\mathrm{CH}_2 \mathrm{OH}$[/tex]group.
Both glycylserine and serylglycine are dipeptide molecules made up of glycine and serine; however, glycylserine has an amide linkage formed when one H of the [tex]$-\mathrm{NH}_2$[/tex] group of glycine condenses with the - [tex]$\mathrm{OH}$[/tex] of the - [tex]$\mathrm{COOH}$[/tex] group of glycine Comparably, in serylglycine, one -OH of the - [tex]$\mathrm{COOH}$[/tex] group of serine condenses with one H of the [tex]$-\mathrm{NH}_2$[/tex] group of serine. Serine and glycine are the two byproducts of the hydrolysis of serylglycine. The rupture of the amide bond is seen by the red line. The glycine, serine, and alanine amino acids that make up this tripeptide structure are connected by amide bonds.
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In water, bases form a. hydroxide ions. b. hydrogen ions. c. hydrogen gas. d. oxide ions.
In the water, the bases forms the hydroxide ions. the bases are the substances which when dissolves in the water produces the hydroxide ions.
The bases are the substance which when dissolves in the water donates the hydroxide ions that is OH⁻ ions. In the pH scale the range above the 7 is called as the bases. The acids are the substance which when dissolves in the water produces the hydrogen ions that is H⁺ ions. The pH scale range of the acid are below 7. The pH 7 is for the neutral substances.
Thus, the bases dissociates in to the hydroxide ions when dissolves in to the water.
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The bases in water create hydroxide ions. The substances known as bases are what dissolve in water to produce hydroxide ions.
The bases are the substance that donates hydroxide ions, or OH- ions, when it dissolves in water. The pH scale's range above 7 is referred to as the bases range. The hydrogen ions, also known as H* ions, are created when the acids dissolve in water. The acid's pH scale range is below 7. The pH 7 is for substances that are neutral.
As a result, when the bases dissolve in water, they split apart into hydroxide ions
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Can someone please help me with this question please?
Answer:
Metal Salt is created therefore hydrogen gas is created. The solution should be H2SO4 + ZN = ZnSO4+H2
Explanation:
Hope this helps out have a great day!
tert.-Butyl alcohol INFRARED SPECTRUM 0.8 0.6 Transmitance 0.4 0.2 3000 1000 2000 Wavenumber (cm-1) n-BUTYL ALCOHOL INFRARED SPECTRUM 0.8. 0.6 Transmitance 0.4 0.24 3000 1000 2000 Wavenumber (cm-1)
Interpretation of the IR spectra of 1-butanol: between 2900 and 1500 cm-1, there are sp3 C-H stretching and CH2 bending modes.
In the spectrum, what is IR?IR spectroscopy, also known as infrared spectroscopy, studies the infrared region of the electromagnetic spectrum, which is light that has a longer wavelength and a lower frequency than visible light. The investigation of molecules' responses to infrared light is called infrared spectroscopy.
How can I locate the infrared spectrum?The typical method for obtaining the IR spectra of solids and liquids is to dissolve the sample in a relatively IR transparent solvent, such as CCl4, and then use straightforward liquid cells. Another option is to use NUJOLTM (a blend of highly pure hydrocarbons) to grind a solid into a fine paste so that the resulting "mull" can be directly analysed.
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What do these two changes have in common?
an engine using gasoline to power a car
cellular respiration
Select all that apply.
Both are only physical changes.
Both are chemical changes.
Both converse mass.
Both are caused by heating.
An engine using gasoline to power a car and cellular respiration are both chemical changes. Option 2.
What are chemical changes?Chemical changes are changes that happen to substances that completely alter the chemical properties of the substances, often in an irreversible way.
Gasoline burns in the air to produce energy that is used to power engines. The hydrocarbon burns to produce carbon dioxide or carbon monoxide and water as by-products.
During respiration, carbohydrates are broken down to produce energy. Depending on the type of respiration, different products are produced that are chemically unique from the initial carbohydrates.
Thus, both gasoline and carbohydrates have their chemical properties irreversibly altered during the process of burning and respiration respectively. In other words, both processes are chemical changes.
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what periods are lanthanides and actinides in
lanthanides and actinides elements are transition elements found in the 5f block and the (7p and 7d )blocks respectively of the periodic table.
The lanthanides and actinidesThe elements that are commonly known as the lanthanides and actinides are part of the periodic table of elements. The lanthanides are a group of elements that are found in the 5f block of the periodic table. They include the elements cerium (Ce) to lutetium (Lu).
The actinides are a group of elements that are found in the 7p and 7d blocks of the periodic table. They include the elements thorium to lawrencium (Lr).
Lanthanides and actinides elements are transition elements that have similar properties, and share similar electron configurations and are found in similar locations in the periodic table and they are rare earth elements too
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i need help determining how to calculate the percent nitrogen by mass in glycine. the molecular formula is C2H5NO2
To calculate the percent nitrogen by mass in glycine (C2H5NO2), you first need to calculate the mass of the nitrogen atom in the molecule.
Since the molecular formula of glycine is C2H5NO2, the nitrogen atom has a mass of 14 (1 atom of nitrogen has an atomic mass of 14). To calculate the percent nitrogen by mass, divide the mass of the nitrogen atom (14) by the total mass of the molecule (2 x 12 + 5 x 1 + 14 + 2 x 16 = 75). The result, 14/75, is 0.1867, which can be expressed as 18.67%.
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What are the steps for making a distance time graph
Answer:
Decide on the size of the axes.
The -axis represents the time taken.
The -axis represents the distance travelled.
Draw each part of the journey in sections.
For each stage of the journey, plot the distance travelled against the time taken and draw the line segment.
Remember that any stop during the journey will be a horizontal line segment.
A return journey means the line segment is drawn going back towards the -axis.
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The conjugate base of CH3NH3+ is A) CH3NH2+ B) CH3NH2-C) CH3NH+ D) CH3NH2
This base is weak; it is methylamine. Methylamine, CH3NH2, and ammonia, NH3, are chemically quite similar.
What is CH3NH2 conjugate acid?Because it may give up an electron pair, CH3NH2 C H 3 N H 2 is a base. It transforms into its conjugate acid when it gives up an electron and accepts a proton. The conjugate acid of CH3NH2 C H 3 N H 2 is CH3NH+3 C H 3 N H 3 + because it contains an additional hydrogen atom and an additional positive charge compared to its base. This makes CH3NH3+ a weak acid.
Because of CH3NH3+, a Bronsted acid, the salt is hence acidic. Moreover, the CH3NH3+ ion's name must be methyl ammonium ion. It belongs to the family of methylamines and is a primary aliphatic amine with one carbon. It is a base of methylammonium conjugated. The aqueous solution of methylamine appears as a colorless to yellow gas.
Therefore the correct answer is option D ) CH3NH2
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Arrange the rocks from oldest to youngest, and put a description of the rocks in the box. Follow the instructions that are shown in the images down below.
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, in below given ways we can arrange the rocks from oldest to youngest.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.
The law of deposition states that the freshest layers are at the surface and the longest are at the bottom. Throughout the canyon, distinct rock strata, for example the Coconino Limestone, are matched. According to the law of lateral continuity, these rock strata were originally united.
Therefore, in above way we can arrange the rocks from oldest to youngest.
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What is the mass, in grams, of 0.0287 mol0.0287\,\text {mol}0.0287mol0, point, 0287, start text, m, o, l, end text of sucrose
This sample of sucrose has a mass of 9.82 grams.
The mass of sucrose can be calculate as follows:
The mass molar of sucrose = 342.30 g/mol
mass molar can be calculated by the number of atoms is multiplied by the atomic mass of each element. The molecular mass of the molecule will be the sum.
The moles of this sucrose sample = 0.0287 moles
Mass = moles * molar mass
Mass = 0.0287 moles X 342.30 g/mol
Mass of sucrose = 9.82401 grams
This quantity has the following three significant figures when expressed as:
sucrose mass equals 9.82 grams
This sucrose sample weighs 9.82 grams.
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