A bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen).This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process.
A) 2-Bromo-2-methylpropan-1-ol
B)The last step of the mechanism is a nucleophilic substitution reaction, where the bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen in this case). This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process:
O Br-
\ / \
C C
/ \ /
O --> Br-
1. The oxygen of the alcohol is protonated by the phosphorus tribromide, making it a good leaving group.
2. A bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen).
3. This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process.
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Complete the table below by writing the symbols for the cation and anion that make up each ionic compound. The first row has been completed for you. ionic compound cation anion . + NaCl Na Cl Х $ ? Crci 6+ Cr CI Cro2 0 NHI 0 Ni(NO), I
An ionic compound's name and formula always place the cation before the anion.
Cations and anions in ionic compounds can be located in what ways?A cation's name, symbol, and charge must be noted in order to determine the ionic compound's formula. Determine the anion's identity after which you should note its symbol and charge. Create an electrically neutral substance by combining the two ions.In the formula for an ionic compound, the negative ion, known as an anion, is listed after the positive ion, known as a cation. The electrical charge in a balanced formula is zero, creating a neutral electrical charge.An ionic compound's name and formula always place the cation before the anion.To learn more about ionic compound's refer to:
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Draw the Lewis structure for the SeBr2 molecule.
a) Total number of valence electrons is
b) Draw the structure. Show the placement of all bonds and unshared (lone) pairs of electrons.
c) Calculate the formal charge on each atom. Show the charges on the molecule above if the charge for the atom is something other than zero.
d) The number of bonds made by the central atom is
e) The number of unshared pairs on the central atom is
f) The electronic geometry is
g) The molecular geometry is
The Lewis Structure for [tex]SeBr_{2}[/tex] is shown below.
b) The diagrams known as Lewis structures, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures, depict the interactions between the atoms in a molecule as well as any lone pairs of electrons that may be present.
a) There are 20 total valence electrons that can be used to draw the [tex]SeBr_{2}[/tex] Lewis structure. It has a bent molecular structure and a tetrahedral electron structure. The Lewis structure has 16 non-bonding electrons in addition to 4 bonding electrons. The bond angle is shorter than 109.5 degrees, and it hybridizes with [tex]SP^{3}[/tex].
d) Number of bonds made by central atom is 2.
e) Number of unshared electron pair by central atom is 2.
rest all parts are in the image.
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n-(2-hydroxy-3-methoxybenzyl)-n-(p-tolyl)acetamide
The systematic name of this molecule is 4-((2-hydroxy-3-methoxybenzyl)amino)-N-(p-tolyl)benzamide.
1. First, the molecule should be broken down into its component parts: the amide group, the amino group, the benzene ring, the tolyl group, and the hydroxy-methoxybenzyl group.
2. The amide group is composed of an acyl group (the N-(p-tolyl)acetamide part) and an amine group (the N-(2-hydroxy-3-methoxybenzyl) part).
3. The acyl group is composed of an acyl chain (the p-tolyl group) and an acid group (the acetamide group).
4. The amine group is composed of an amino group (the 2-hydroxy-3-methoxybenzyl group) and an alkyl group (the N part).
5. The benzene ring is composed of a phenyl group (the benzene ring) and a substituent (the tolyl group).
6. Using this information, the systematic name of the molecule can be constructed. The systematic name is 4-((2-hydroxy-3-methoxybenzyl
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Select the correct answer. how many atoms of oxygen are contained in 160 grams of n2o3? a. 1.27 × 1024 b. 1.81 × 1024 c. 3.80 × 1024 d. 6.28 × 1024
Option (c) is correct. 3.80 x 10^24 atoms of oxygen are contained in 160 grams of N2O3. This is calculated by using the Avogadro's constant.
mass of N2O3 = 76.01 g/ mole
Moles of N2O3 = 160 grams / 76. 01 g/ mole
= 2.104
Mole can be defined as the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12.
moles of Oxygen = moles of N2O3 x number of oxygen atoms in N2O3
= 3 x 2.104 =6.315 moles
the atoms of oxygen = (6.315 moles x 6.02 x10 ^23 atoms) / 1 mole
=3.80 x 10^24 atoms
here used Avogadro's constant. Avogadro's constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample. It is an SI defining constant with an exact value of 6.02214076×10²³ reciprocal moles.
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which of the following statements below is false regarding the complex ion [co(en)2(h2o)cn]2+ ? -The complex ion contains Co(I).
-The complex ion exhibits cis and trans geometric isomers, but no optical isomers.
-The complex ion exhibits two geometric isomers (cis and trans) and two optical isomers.
- The geometric isomers of the complex ion have identical chemical properties.
- Because en is a strong field ligand (large Δ), the complex ion is paramagnetic.
What causes the trend in atomic radius across a period and within a group?
Atomic radius is the distance from the atom’s nucleus to the outer edge of the electron cloud.
Atomic radius decreases across a Period, but increases down a Group.
In a period, from left to right, with increase in the atomic number, the atomic radius decreases due to increase in the nuclear charge which increases the attraction of the nucleus for the valence electrons.
In a group, on moving from top to bottom, the ionic radius increases as a new energy level is added at each succeeding element but the number of valence electrons remains same.
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Fe2(CO3)3 Fernic carbonate (Iron (III) carbonate)
The chemical name for fernic carbonate is [Fe 2 (CO 3) 3]. The substance also known as iron (III) carbonate.
What is iron III carbonate's chemical formula?The chemical name for iron III carbonate is [Fe 2 (CO 3) 3].The substance having the chemical formula Fe2(CO3)3 Fe 2 (C O 3) 3 is known as iron (III) carbonate.Fe2(CO3)3 + H2SO4 is a neutralisation reaction, which results in the formation of a salt as the carbonate and acid combine. Iron (4 Fe (s) + 3 O 2) ( g ) Oxygen 2 Fe Ferric oxide is 2 O 3 (s).The formula just lists the first element's name. By taking the element name's stem and adding the suffix -ide, the second element is given a name. A series of numerical prefixes are used to describe how many atoms there are in a given molecule.Learn more about fernic carbonate here:
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Give the chemical names for the following ionic compounds.
part 3: Fe2(CO3)3
I have some questions, im not very great at pen table diagrams, i was wondering if i could get some answers
The completely-filled table of the atomic number, proton number, mass number, electron number, and charge is found in the attachment.
What is the atomic number of an element?The atomic number of an element is the number of protons present in the nucleus of the atom an element. Therefore, the atomic number of an element is the proton number of an element.
For a neutral atom, the number of protons in the nucleus of the element is equal to the number of electrons. However, for charged atoms, the electron number is less than the proton number if the element has a positive charge while the electron number is greater than the proton number if the charge on the atom is negative. The size of the charge gives the number of electrons that have been gained or lost by the atom.
The mass number of an atom is the sum of the protons and neutrons in the nucleus of the atom of the element.
Mass number = atomic (proton) number + neuron number
Neutron number = mass number - atomic (proton) number
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Question 12 of 23 Convert 2.87 kg to grams Use only the metric system. 28.7 kg х ARTING AMOUNT 28.7 kg ADDTAR DELETE ANSWER RESET 2 1 10 100 1000 0.1 0.01 0.001 2.87 28.7 0.287 2870 0.00287 kg 9 or pull up for additional resources
2.87 kg will be equal to 2870 grams, when converted using the metric system.
What is the metric system?The metric system is a decimalized system of measurement used in many parts of the world. It is based on a decimal system, where the base unit of measurement is the gram. The metric system is the most common system of measurement used in the world today and is used in many scientific and medical applications.
It is based on the decimal system, where units of measurement are based off of a single base unit. It is also easy to convert from one unit of measurement to another, as the conversions are based on multiples of ten. This makes it easier to use and understand and is beneficial in many applications.
Conversion of 2.87 kg to grams:In order to convert 2.87 kg to grams, the following steps can be taken:
1. Multiply 2.87 kg by 1000, as there are 1000 grams in 1 kg.
2. 2.87 kg x 1000 = 2870 g
Therefore, 2.87 kg is equal to 2870 grams when using the metric system.
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be has an atomic number of 4 and an atomic mass of 9. how many protons does it have?
also, is this favoring the products, reactants, or neither?
identify the products of the following acid-base reaction:
The acid-base reaction is when an acid and a base react together to form a salt and water.
Identify the products of the following acid-base reaction:HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l)Products: NaCl (aq) + H2O (l)This reaction favors the products.The acid-base reaction is when an acid and a base react together to form a salt and water. In this reaction, the acid is donating a hydrogen ion (H+) to the base, and the base is donating an hydroxide ion (OH-) to the acid.The products of this reaction will be a salt, which is a neutral compound, and water.The salt is formed when the hydrogen and hydroxide ions combine to form a hydronium ion (H3O+), and the water is formed when the hydronium ion is combined with another hydroxide ion.The salt and water are the products of this reaction.This reaction favors neither the products nor the reactants.It is an equilibrium reaction, meaning the concentrations of the reactants and products remain the same at equilibrium.To learn more about equilibrium reaction refer to:
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Draw a Lewis structure for SnCl3 1- . Indicate the formal charge for each atom in the Lewis structure. Name and sketch the electron-pair geometry. Name and sketch the molecular geometry around the central atom
The Lewis structure for SnCl₃ 1- is as follows:
Sn Cl
\ /
Cl--Cl
|
Cl
The electron-pair geometry is trigonal bipyramidal.
A Lewis structure, also known as a Lewis dot diagram or electron dot diagram, is a way of representing the valence electrons of an atom in a chemical compound. The structure is named after Gilbert N. Lewis, who first proposed it in 1916. Lewis structures depict the chemical symbol of the atom in the center, with dots representing the valence electrons surrounding it. The number of dots corresponds to the number of valence electrons in the element.
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Complete the table below by writing the symbols ionic compound cation anion + NaCl Na ci Х X CrCl4 4+ Cr c1 NH,Br NΗ, Br Cu(OH)2 2+ Cu OH Cos
An ionic compound is a type of chemical compound that is composed of two ions held together by electrostatic forces.
What is chemical compound?A chemical compound is a combination of two or more elements that are chemically bonded together in a specific ratio. Chemical compounds are formed when the atoms of different elements are joined together through chemical bonds, which are formed when at least one atom gives or shares one or more electrons with another atom.
The two ions, a cation and an anion, are usually a metal and a non-metal. The cation carries a positive charge and the anion carries a negative charge. For example, in the ionic compound NaCl, the cation is sodium (Na+) and the anion is chloride (Cl-). In CrCl4, the cation is chromium (Cr4+) and the anion is chloride (Cl-). In NH,Br, the cation is nitrogen (NH+) and the anion is bromide (Br-). In Cu(OH)2, the cation is copper (Cu2+) and the anion is hydroxide (OH-).
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QUIZ 2: GOLDEN YEARS TO PERIODIC TABLE The atomic number of the element which does not usually form compounds because its outermost shell is full is:
The atomic number of the element that does not usually form compounds because its outermost shell is full is eighteen (18).
An atomic number is the number of a chemical element in the periodic table in which elements are arranged according to the increasing number of protons in the nucleus. Therefore, the number of protons that is always equal to the number of electrons in neutral atoms is also called the atomic number. When the outermost shell of an element is full, it has atomic number eighteen (18).
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draw lewis structure for
xef2o
The shape of this is trigonal bipyramidal. By VSEPR arrangement the xenon atom present in Central and an oxygen is present in XeF₂O. The lewis structure attached below.
The primary atom in the hybridization of xenon difluoride is xenon (Xe). If we count the number of valence shells in Xe, there are two electrons in the 5s orbital and six in the 5p orbital, respectively. XeF₂O It will have a 5s2 5p6 electrical ground state configuration.
Although when it is stimulated, its configuration changes to 5s² 5p⁵ 5d¹. In total, the atomic orbitals of the xenon atom will undergo hybridization, yielding five sp3d hybrid orbitals in the excited state configuration (5s, 5py, 5px, 5pz, and 5dzx). Two-hybrid orbitals are produced by overlapping the two partially filled 2pz atomic orbitals of fluorine.
These orbitals are subsequently used to construct F-Xe-F sigma bonds. The remaining three hybrid orbitals with lone pairs do not participate in bonding.
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A solid object at 10°C is placed in an insulated container filled with water at 50°C. Which of the two statements below
must be accurate?
A The final temperature of the water will be close to 50°C.
B The heat lost by the water will be aborbed by the object.
The temperature of the water and the object will approach the same value.
D The final temperature of the system will be 30°C.
According to concept of thermal energy, two statements which are accurate about insulated container are that heat lost by water will be absorbed by the object. Temperature of water and object will approach same value.
What is thermal energy?Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.Heat is a type of thermal energy.It is concerned with the first law of thermodynamics.
Thermal energy arises from friction and drag.It includes the internal energy or enthalpy of a body of matter and radiation.It is related to internal energy and heat .It arises when a substance whose molecules or atoms are vibrating faster.
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how many grams of co2 are produced from 125 g of o2 and excess ch4 ? ch4 + 2o2 → co2 + 2h2o
In the reaction CH₄ + 2O₂ → CO₂ + 2H₂O, 85.9375 g of CO₂ will be produced from 125 g of O₂ and excess CH₄.
Therefore the answer is 85.9375 g.
The balanced chemical equation for the reaction of methane (CH₄) with oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O) is:
CH₄ + 2O₂ → CO₂ + 2H₂O
To determine how many grams of CO₂ will be produced from a given amount of O₂ and CH₄, we can use the concept of stoichiometry. Stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction.
In this case, the stoichiometry of the reaction shows that for every one mole of CH₄ that reacts, one mole of CO₂ is produced, and for every two moles of O₂ that react, one mole of CO₂ is produced.
We can use this information to calculate how many grams of CO₂ will be produced from 125g of O₂ and excess CH₄. As CH₄ is in excess, amount of O₂ is the limiting factor.
We know that 1 mole of O₂ is equal to 32g and 1 mole of CO₂ is equal to 44g, so we can find the number of moles of O₂ by dividing 125g by 32g/mole
= (125 g)/ (32 g/mole)
= 3.90625 moles
We know that for every two moles of O₂ that react, one mole of CO₂ is produced. So 3.90625 moles of O₂ will produce
= 3.90625/2
= 1.953125 moles of CO₂
Finally, we can calculate the number of grams of CO₂ produced by multiplying the number of moles of CO₂ by the molar mass of CO2 (44g/mole)
= 1.953125 moles × 44g/mole
= 85.9375g
Therefore, 85.9375g of CO₂ will be produced from 125 g of O₂ and excess CH₄.
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A gasoline engine absorbs 2500 j of heat and performs 1000 j of mechanical work in each cycle. The efficiency of the engine is.
The efficiency of the engine that absorbs 2500 J of heat and performs 1000 J of mechanical work in each cycle is 40%.
The formula for the engine's efficiency is as follows:
η = (W/Q) x 100
η = the engine efficiency
W = work done by the engine
Q = heat absorbed by the engine
Q = 2500 J is the amount of heat that a gasoline engine can absorb.
Engine performs mechanical work at a rate of W = 1000 J.
The idea of engine efficiency is frequently used to rate and quantify the propensity to perform work. The ratio of work produced to the amount of heat supplied is used to express it.
So, the efficiency of the engine:
η = (W/Q) x 100
= (1000 J / 2500 J) x 100
= 0.4 x 100
= 40%
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Balance the following equations: . a. Al + KOH + H2O → KAl(OH)4 + H2 b. KAl(OH)4 + H2SO4 → Al(OH)3 + H2O + K2SO4
A) 2Al + 2KOH +6[tex]H_{2} O[/tex] ⇒ 2KAl (OH)₄ + 3H₂
B) 2KAl (OH) + H₂SO₄ ⇒ 2Al (OH)₃ + K₂SO₄ + 2 H₂O
To balance the unbalance chemical equation:
Write the imbalanced chemical equation first to display the reactants and products in order to balance the chemical equation.
Secondly, note the number of atoms of each element on either side of the reaction arrow.
In order to equalize the number of atoms of each element on both sides of the equation, add coefficients (the numbers in front of the formulas). The oxygen and hydrogen atoms can be balanced most easily last.
Hence, we get the balance chemical equation.
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What is the chemical compound that can cause algal blooms and cultural eutrophication in streams?
Phosphorous and nitrogen are the chemical compound that can cause algal blooms and cultural eutrophication in streams.
The cultural eutrophication is the natural aging process of aquatic ecosystems over time. Cultural eutrophication is the human-caused acceleration of aging usually resulting from increased nutrient input. This results in algal blooms, which in marine environments may cause red tides and dead zones. Eutrophication is characterized by excessive plant and algal growth due to the increased availability of one or more limiting growth factors needed for photosynthesis such as sunlight, carbon dioxide, and nutrient fertilizers. Eutrophication occurs naturally over centuries as lakes age and are filled in with sediments. human activities have accelerated the rate and extent of eutrophication through nitrogen and phosphorus, into aquatic ecosystem.
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4. How many grams of fluorine are needed to produce 70.0 g of hydrofluoric acid (HF)?
2NH3 + 5F₂ ---> N₂F4 + 6HF
According to stoichiometry of the given chemical equation, 52.47 g of fluorine are needed to produce 70.0 g of hydrofluoric acid .
What is stoichiometry?It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.
In the given chemical equation, 190 g of fluorine gives 120.06 g of HF
∴70 g of HF will give 70×190/120.06=52.47 g.
Thus, 52.47 g of fluorine are needed to produce 70.0 g of hydrofluoric acid .
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2.2.5
2.5 g gf glucose
disolved into 0.5 dm³ g of water
If 2.5 g of glucose is dissolved in 0.5 dm3 of water, then the concentration of the solution will be 5 g/dm3, and the concentration of the solutes determines the concentration of the solution.
What is the concentration of the solution?A solution is made up of both solutes and the solvent, and the amount of the solvent and solutes determine the solution concentration, such that if a solution has more solutes than the solvent, the solution will be more viscous, and here the concentration of the solution is 5 g/d[tex]{m}^3[/tex] (2.5 glucose/0.5 dm3).
Hence, if 2.5 g of glucose is dissolved in 0.5 dm3 of water, then the concentration of the solution will be 5 g/dm3, and the concentration of the solutes determines the concentration of the solution.
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Calculate the molality of each of the following aqueous solutions (a) 2.50 M NaCl solution (density of solution = 1.08 g/mL) (b) 48.2% by mass KBr solution.
A. The molality of the 2.50 M NaCl solution (density of solution = 1.08 g/mL) is 2.68 M
B. The molality of the 48.2% KBr solution is 7.819 M
A. How do I determine the molality of the 2.50 M NaCl solution?We'll begin by obtaining the mass of the solution. Details below:
Density of solution = 1.08 g/mLVolume (Assuming) = 1000 mLMass of solution = ?Mass = Density × volume
Mass of solution = 1.08 × 1000
Mass of solution = 1080 g
Next, we shall obtain the mole of NaCl. Details below:
Molarity of NaCl = 2.50 MVolume = 1000 mL = 1000 / 1000 = 1 LMole of NaCl =?Mole = Molarity × volume
Mole of NaCl = 2.5 × 1
Mole of NaCl = 2.5 moles
Finally, we shall determine the molality of the solution. Details below:
Mole of NaCl = 2.5 molesMolar mass of NaCl = 58.5 g/molMass of NaCl = mass × molar mass = 2.5 × 58.5 = 146.25 gMass of solution = 1080 gMass of water = 1080 - 146.25 = 933.75 g = 933.75 / 1000 = 0.93375 KgMolality of solution =?Molality = mole / mass of water (in Kg)
Molality of solution = 2.5 / 0.93375
Molality of solution = 2.68 M
B. How do I determine the molality of the 48.2% KBr solution?The molality of the 48.2% KBr solution can be obtained as follow:
Percentage of KBr = 48.2%Mass of KBr = 48.2 gMolar mass of KBr = 119 g/molMole of KBr = mass / molar mass = 48.2 / 119 = 0.405 mole Mass of water = 100 - 48.2 = 51.8 g = 51.8 / 1000 = 0.0518 KgMolality of solution =?Molality = mole / mass of water (in Kg)
Molality of solution = 0.405 / 0.0518
Molality of solution = 7.819 M
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Sodium azide NaN3 decomposes when heated according to the equation 2 NaN3 (s) → 2 Na(s) + 3 N₂ (g) The reaction is used to fill balloons, called air bags, inside motor vehicles to protect passengers during accidents. Calculate the mass of sodium azide needed to fill a 48dm³ air bag with gas, measured at r.t.p.
Answer:
Explanation:
To calculate the mass of sodium azide needed to fill a 48dm³ air bag with gas at r.t.p., you need to use the ideal gas law. The ideal gas law states that the pressure of a gas is directly proportional to its temperature (in Kelvins) and the number of moles of gas present, and inversely proportional to its volume. The ideal gas law can be expressed as:
PV = nRT
Where:
- P is the pressure of the gas
- V is the volume of the gas
- n is the number of moles of the gas
- R is the ideal gas constant
- T is the temperature of the gas
You can rearrange the ideal gas law to solve for the number of moles of gas present:
n = PV / RT
To solve this problem, you need to plug in the known values. At r.t.p., the pressure is 1 atm, the temperature is 273 K, and the volume is 48 dm³. The ideal gas constant is 8.31 J/mol*K. Plugging in these values, you get:
n = (1 atm * 48 dm³) / (8.31 J/mol*K * 273 K)
Solving for n, you get:
n = 0.0174 moles
Now that you have the number of moles of gas present, you can use the balanced chemical equation for the decomposition of sodium azide to calculate the number of moles of sodium azide needed. The balanced chemical equation is:
2 NaN3 (s) → 2 Na(s) + 3 N₂ (g)
This equation tells you that for every 2 moles of sodium azide that decompose, you get 3 moles of nitrogen gas. Since you need 0.0174 moles of nitrogen gas, you can divide that number by 3 to get the number of moles of sodium azide needed:
0.0174 moles N₂ / 3 moles N₂/2 moles NaN3 = 0.0087 moles NaN3
To convert the number of moles to mass, you need to know the molar mass of sodium azide. The molar mass of sodium azide is 65.01 g/mol. Plugging in the number of moles and the molar mass, you get:
0.0087 moles NaN3 * 65.01 g/mol = 0.5686 g NaN3
So, the mass of sodium azide needed to fill a 48dm³ air bag with gas at r.t.p. is approximately 0.5686 grams.
Acellus Chem HELP Question in picturee I WILL GIVE BRAINLIEST
You can solve this problem using stoichiometry:
The tables is already set for you, so let's solve this using it:
Starting at the 75.0 g, divide it by 44.96:
you are left with 1.668 mol because the g cancel each other out.
Now multiply 1.668 mol with 6.02 × 10²³ atom to be left with
1.0041 mol · atom Sc
1 mol Sc
The mol cancel each other out, so your final rounded answer will be
Answer: 1 × 10²³ atoms Sc
You are riding a bike. If you apply force of 150N, and you and the bike have a combined mass of 90KG, what will be the forward acceleration of the bike?
The acceleration of the bike can be obtained as 1.67 m/s^2.
What is the acceleration ?By the use of the formula that we get from the Newton second law we can be able to connect the force that has been exerted on the bike to the acceleration of the bike and that is what we are going to do in the problem that we want to solve.
Given that;
F = ma
m = mass of the bike
a = acceleration of the bike
F = force applied
Then we have;
a = 150 N/90Kg
a = 1.67 m/s^2
The bike is going to have an acceleration of 1.67 m/s^2.
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the belt of maximum solar energy input to earth swings back and forth ________.
The belt of maximum solar energy input to earth swings back and forth through the tropics.
Solar energy is the energy derived from the sun, or rather, from the heat produced by sun. This heat/radiation is propagated in the form of electromagnetic radiations. The amount of solar radiation that reaches any given area on the Earth's surface is not constant - it fluctuates. Although, every location receives some sunshine during the course of a year. This radiation is captured using solar technology, which transforms it into useful energy for different purposes. Photovoltaics (PV) and concentrating solar-thermal power (CSP) are the two main solar technologies used. If we observe the movement of earth around the sun, we know that the tropics (around the equator) receive maximum sunlight throughout the year, wheres, the poles receive the minimum. Hence, The belt of maximum solar energy input to earth swings back and forth through the tropics.
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An ideal gas is contained in a vessel of fixed volume at a temperatureo of 300.0 K. The tempterature is increased to 900.K. By what factor is the pressure in the vessel multiplied
Answer: I need this answer too
Explanation:
Hope someone can help us
Complete the table below by writing the symbols for the cation and anion that make up each ionic compound. The first row has been completed for you. ionic compound cation Naci Nat Txs ? Mn(NO3), CrF4 (NH,),9 | | | VPO4
A cation's name, symbol, and charge must be noted in order to determine the ionic compound's formula.
How do cation and anion symbols look?In chemistry, cations are denoted by a plus sign (+) and anions by a minus sign (-); the number of symbols denotes the number of electrons lost or gained (this is referred to as an atom's valence). An anion is denoted by the symbol Cl-, while cations are denoted by the symbols Na+ and Ca++.A cation's name, symbol, and charge must be noted in order to determine the ionic compound's formula. Determine the anion's identity after which you should note its symbol and charge. Create an electrically neutral substance by combining the two ions.To learn more about ionic compound's refer to:
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(i) MgO(s) has the same crystal structure as NaCl(s). The experimental lattice enthalpy of NaCl(s) is -781 kJ mol-1 whilst that of MgO(s) is -3889 kJ mol-1, Explain the difference in lattice enthalpies.
To solve this we must be knowing each and every concept related to lattice enthalpy. Therefore, MgO has a larger lattice energy since each ion contains two unit charges, whereas NaCl only carries one.
What is lattice enthalpy?Lattice Enthalpy is indeed the enthalpy change caused by the synthesis of one mole of such an ionic compound out of its gaseous ions, while all other parameters stay constant.
Enthalpy is indeed the heat content, overall heat, or even a thermodynamic quantity proportional towards the internal energy of the system multiplied by the product of its pressure and volume. MgO has a larger lattice energy since each ion contains two unit charges, whereas NaCl only carries one.
Therefore, MgO has a larger lattice energy since each ion contains two unit charges, whereas NaCl only carries one.
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