Taking into account the definition of pH, the pH of the solution is 0.16.
Definition of pHpH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
The pH is defined as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
pH in this caseA solution is made by dissolving 18.1 g of HCl in 721 mL(or 0.721 L) of water. Being the molar mass of HCl 36.45 g/mole, the amount of moles of HCl can be calculated as:
amount of moles= 18.1 g÷ 36.45 g/mole
amount of moles= 0.4966 moles
HCl is a strong acid, meaning it dissociates completely. So:
[HCL]= [H⁺]= amount of moles÷ volume
[HCL]= [H⁺]= 0.4966 moles÷ 0.721 L
[HCL]= [H⁺]= 0.6887 moles/L
Then, the pH can be calculated as:
pH= - log (0.6887 moles/L)
pH= 0.16
Finally, the pH is 0.16.
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PLEASE HELP
Review the statements below and select the one that best describes the impacts that building dams can have on wildlife and the environment.
A) When a dam is built on a river, it alters the habitat and environment by rerouting the flow of water so that people and wildlife can make better use of the environment without significantly affecting ecosystems.
B) When a dam is built on a river, it alters the habitat and environment by displacing humans and animals from their homes. Fish and other wildlife can no longer move along the length of the river because the dam acts as a barrier.
C) When a dam is built on a river, it increases the available water, allowing people to irrigate crops and raise livestock, and it allows the inhabitants of the river to move freely along the length of the river.
D) When a dam is built on a river, it increases the available water for fish and other wildlife, thereby having only positive effects on wildlife and the environment.
The statement which best describes the impacts that building dams can have on wildlife and the environment include the following: C) When a dam is built on a river, it increases the available water, allowing people to irrigate crops and raise livestock, and it allows the inhabitants of the river to move freely along the length of the river.
What is a river?A river can be defined as a large natural body of fresh water that continuously flow into an ocean, lake, sea or another river. Additionally, some examples of a river include the following:
MississippiDanubeAmazonSaint LawrenceRiver NileGenerally speaking, a dam can be built on a river in order to increase the availability of water, which then allows people to irrigate their crops and raise livestock, without affecting the free movement of the living organisms living in the river.
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Which statement is true about plasma?
a. It has a fixed volume.
b. It has a fixed shape.
c. It contains ions.
d. It does not occur in nature.
Question 2:
The volume of a gas is
a. fixed.
b. viscous.
c. the same as its container.
d. equal to its mass.
Matter refers to any substance that has mass and occupies space (volume). The states of matter are as follows;
GasLiquidSolidPlasmaPlasma is the state of matter consisting of partially ionized gas and electrons. A gas is an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid.
The volume of a gas is the same as the container that holds it.
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Compare the mass of the magnesium strip from test tube 1 with the
initial mass of the same strip measured in task 1, part A. Is the mass the
same, or is it different? If it's different, explain what may have caused
the difference.
The mass of the magnesium strip from test tube 1 is different than the initial mass of the same strip measured in task 1, part A. This difference in mass is likely due to the reaction of the magnesium strip with the hydrochloric acid, which caused the magnesium to dissolve and be converted into magnesium chloride.
What is the magnesium?
Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a silvery-white, light, and ductile metal. Magnesium is a vital component of many biological processes, including photosynthesis and respiration, and is essential for many enzymes, proteins, and cell membranes. Magnesium is also an important component of human nutrition, as it helps to regulate calcium and potassium levels in the body. Magnesium is found in a variety of foods, including green leafy vegetables, nuts, whole grains, and dairy products. Additionally, magnesium can also be found in many dietary supplements. Magnesium deficiency can lead to a number of health problems, including muscle cramps, fatigue, and headaches.
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How many molecules of SF6 are in 81 moles
Answer:
= 4.9 x 10^25 molecules of SF6
Explanation:
There's a guy named Avogadro something who said 1 mole of anything has 6.022x10^23 units (such as molecules, ions etc.) of that thing.
So to get to molecules just multiply 81 moles by 6.022x10^23
= 4.9 x 10^25 molecules of SF6
PLEASE HELP please....
The most likely cause of population change between 2005 and 2010 is that more people died than were born. Option 3.
Population growthThe growth of a population is measured by a host of factors such as:
Birth rateDeath rateImmigrationEmigrationA population will experience growth if the rate of immigration is more than emigration and or if the birth rate is more than the death rate.
A population will experience a decline if the rate of emigration is more than immigration and or if the rate of birth is less than the rate of death.
From the graph, between 2005 and 2010, the population experienced a decline in its growth. Thus, three things are possible:
There has been more death than birth, orThere has been more emigration than immigrationOr a combination of the two.Thus, from the available options, the only plausible one is that more people died than were born.
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6) Which of the following soutes would cause the greatest increase in the boiling point of
water? Explain your answer thoroughly
SIO vs Kl vs CaCl₂
When a solute is dissolved in a solvent, the resulting solution will have a higher boiling point than the pure solvent. The extent to which the boiling point is increased is dependent on the concentration of the solute and the type of solute.
In general, non-volatile solutes that have high molecular weights and strong intermolecular forces will cause a greater increase in the boiling point of a solvent than solutes that are volatile or have low molecular weights and weak intermolecular forces.
With this in mind, of the three solutes you listed, calcium chloride (CaCl₂) would cause the greatest increase in the boiling point of water. Calcium chloride is a non-volatile solute with a high molecular weight and strong ionic bonds, which contribute to its ability to increase the boiling point of water.
In contrast, sodium iodide (NaI) is a volatile solute with low molecular weight and relatively weak intermolecular forces, so it would cause a relatively small increase in the boiling point of water.
Potassium chloride (KCl) is also a non-volatile solute with a high molecular weight and strong ionic bonds. However, it would still cause a slightly smaller increase in the boiling point of water than calcium chloride because calcium chloride has a higher molecular weight and stronger intermolecular forces.
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Which of these qualities most likely helped Kepler construct the scientific explanation of the solar system?
a generosity and helpfulness
b igenuity and creativity
c assertiveness and flexibility
d consideration and compassion
if 0.130 m naoh is slowly added to the hcl sample, in what ph range will the indicator change color? express your answers to one decimal place. enter your answers numerically, in ascending order, separated by a comma.
The pH range in which the indication will show change in color will be 5 to 8.
Adding 0.130 m NaOH to a sample of HCl can cause the pH of the mixture to range between 5 and 8. This change in pH occurs because NaOH is a basic compound and adding it to to HCl will cause the solution to become basic with the increase in conncentration.
When this happens, an indicator in the mixture will change color, indicating a shift in acidity.
This shift in acidity is caused by the NaOH neutralizing the HCl. Knowing the pH range can be useful when attempting to adjust the acidity of a mixture.
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The following reaction will occur Na(s) + AgCl(aq) → Ag(s) + NaCl(aq)
True or False
True
False
The following reaction will take place: Na(s) + AgCl(aq) → Ag(s) + NaCl(aq). This assertion is accurate. Silver (Ag) and sodium chloride are created when sodium (Na) and silver chloride (AgCl) combine.
What is the chemistry-related hypothesis of precipitation?Precipitation reactions are often double displacement events that result in the formation of the precipitate, a solid form of residue. The creation of insoluble salts that precipitate out of the solution results from these reactions when two or more solutions with various salt concentrations are mixed.
What is the chemistry behind precipitation?When a compound's concentration exceeds its solubility, precipitation may result. This might result from changes in temperature, solvent evaporation, or solvent mixing. Strongly supersaturated solutions produce precipitation more quickly.
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Which of the following represents the overall chemical equation for the reaction and the rate law for elementary step 2
O The overall reaction is H2(g) + 2ICI(g) -- > 2HCI(g) + I2(g) The rate law for step 2 is rate = k[HI][ICI]
O The overall reaction is H2(g) + 2ICI(g) -- > 2HCI(g) + I2(g) The rate law for step 2 is rate = k [H2] [HI] [ICI]
O The overall reaction is H2(g) + 2ICI(g) -- > 2HCI(g) + I2(g) The rate law for step 2 is rate = k [H2] [ICI]
The correct answer is Option 2: The overall reaction is>
H2(g) + 2ICI(g) -- > 2HCI(g) + I2(g)The reaction of hydrogen and iodine chloride produces hydrogen iodide as an intermediate. This means that the rate of the reaction is determined by the concentrations of all three species:
hydrogenhydrogen iodideiodine chloride.The rate law, which expresses the relationship between the rate of the reaction and the concentration of the reactants, is rate = k [H2] [HI] [ICI], where k is the rate constant. This means that the rate of the reaction is proportional to the concentrations of H2, HI, and ICI.
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Study the reaction equation.
2Mg + O2 → 2MgO
If magnesium (Mg) ions carry a 2+ charge, how are the electrons
transferred in this reaction?
Each Mg atom gives two electrons to an O atom.
Each Mg atom gives one electron to an O atom.
Each O atom gives two electrons to an Mg atom.
Each O atom gives one electron to an Mg atom.
According to the electronic configuration, as magnesium ions carry a 2+ charge, each Mg atom gives one electron to an O atom.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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calcium chloride dissolves in water according to the balanced equation: calculate the concentration of cl- ions in a solution if 500 ml of 1.25 m cacl2 is diluted to 600 ml with distilled water for an experiment.
After diluting 500 ml of 1.25 mol CaCl₂ solution, the concentration of Cl⁻ ions increases to 2.08 Molar.
Given
Each CaCl₂ molecule gives two chloride molecules in the solution.
The initial concentration of CaCl₂ N₁ = 2 x 1.25 M ( n- factor = 2)
The initial volume of CaCl₂ V₁ = 500 ml
The final volume of the CaCl₂ solution V₂ = 600 ml
The final concentration of CaCl2 solution N₂ =?
N₁V₁ = N₂V₂
2 x 1.25 x 500 = N2 x 600 ml
N₂ = 2.08 molar chloride ion is present in the volume of the 600 ml solution.
Hence, dilution increases the dissociation percentage of salts.
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The concentration of Cl- ions rises to 2.08 mol after 500 ml of a 1.25 mol CaCl2 solution have been diluted.
Two chloride molecules are produced in the solution by each CaCl2 molecule.
CaCl2's initial concentration was 2 × 1.25 M (n-factor: 2).
CaCl2's initial volume, V1, is 500 ml.
The CaCl2 solution's final volume, V2, is equal to 600 ml.
The final CaCl2 solution N2 concentration is equal to.
N₁V₁ = N₂V₂
N2 x 600 ml = 2 x 1.25 x 500
The 600 ml of solution contains N2 = 2.08 molar chloride ions.
Dilution thereby raises the salts' dissociation percentage. The concentration of Cl- ions rises to 2.08 mol after 500 ml of a 1.25 mol CaCl2 solution have been diluted.
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the decomposition of KCIO3 occurs as follows 2KCIO3-2KCI+3O2 how many moles of oxygen are formed if 141 g of KCIO3 decompose?
141 g of KCIO3 break down into 1.725 moles of oxygen.
What does one mole equal?A substance's mole is equivalent to 6.022 x 10²³ of that material (such as atoms, molecules, or ions). The term "Avogadro's number" or "Avogadro's constant" refers to the number 6.022×10²³.
From equation 2KCIO3 ⇒ 2KCI + 3O2
(141 gm) ( x gm)
⇒ x gm of O2 =141 g KClO3 × (1 mol KClO30)/122.5 g KClO3 × (3 mol O2)/2 mol KClO3 × (32g O2)/1 mol O2
⇒13,536/245 = 55.2 g O2
now, Number of moles of O2 = Mass of O2 / Molar mass of O2
⇒No. of moles of O2 = 55.2/32 = 1.725
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For the reaction C + 2H₂ → CH4, how many moles of carbon are needed to make 129 grams of methane, CH4 ?
0.35 moles of carbon are needed to make 129 grams of methane, CH₄.
What is methane?
Methane is a hydrocarbon gas composed of one carbon atom and four hydrogen atoms. It is the simplest and most abundant form of organic matter found in the environment. It is an odorless and colorless gas, but is often found mixed with other gases that give it a slight smell. Methane is produced naturally by the decomposition of organic matter in the absence of oxygen, such as in wetlands or the intestines of animals. It is also produced by anaerobic bacteria, which break down organic material in the absence of oxygen. It is a major component of natural gas, which is used as a fuel source for cooking and heating. Methane is also a greenhouse gas, meaning it traps heat in the atmosphere and contributes to global warming.
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Name the following organic molecules (using full nomenclature):
see picture
put new elements in top and bottom and new thrmostats in top and bottom, but only have less than luke warmwater,
Most electric water heaters feature two thermostats: an upper thermostat and a lower thermostat, which are both hidden beneath two control panels.
You should set both thermostats to the same temperature in order to ensure that your electric water heater operates as effectively as possible. At any given time, only one element will be active. An example of a flip/flop system is this. There will always be 120 volts to both elements on a 240 volt water heater. The 240 volts needed to energize the element will be completed by the thermostat by sending the second leg of the 120 volts to the element. Where the burner typically situated at the bottom of the tank, sediment can accumulate over time.
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Draw the organic product of the following reaction between (1S,3S)-1-chloro-3-methylcyclopentane and methanethiol in the presence of sodium hydroxide. Show any H's on chirality centers, if applicable, and use wedge-and-dash bonds.
Also, Select all that apply: The product of the reaction is characterized as being:
S,S
R,R
R,S
Chiral
Racemic
Achiral
The product formed is shown in the image attached. It is RR and chiral. This owes to the fact that there is inversion of configuration.
What is an SN2 reaction?We know that a nucleophilic reaction is one that involves the attack of a nucleophile which is an electron rich specie on a region in a molecule that is electron deficient.
In this case, the attack is going to occur at the point where the -SH moiety is attached as shown in the image attached. Since the reaction occurs by the SN2 mechanism; The product is
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Please help!
Suppose you need to perform single molecule detection. You have a CCD that can give detectable signal with 10000 electrons in a well if all 532 wells in the column of the CCD array are summed. Assuming you have F2 optics for collection, throughput to the CCD is 70%, the quantum efficiency of the CCD is 0.90 for the wavelengths you are looking at (detector have their own quantum efficiencies), the dye molecule you are detecting has a quantum efficiency of 0.80 and fluorescence lifetime of 25 ns, how long would you need to collect data in order to obtain a signal that is detectable? Assume the laser you are using gives you amble photons for the experiment.
If you have a 25 micron spot size, what concentration of molecule do you need in solution to ensure you will see a single molecule in ~ 5 percent of your experiments?
Throughput to the CCD is how much light you get to the CCD after reflection and other loses due to optical components.
A charge-coupled device (CCD) is a component that receives an electrical charge and transmits it to the following area.
What is single molecule technique?A charge-coupled device (CCD) is a component that receives an electrical charge and transmits it to the following area.An electrical charge can be received and transferred via a charge-coupled device (CCD) to another area where it can be altered, such as transforming it to an electronic value.High-powered telescopes and CCD device image sensor cameras can be utilized in astronomy.Once the Earth's rotation synchronizes with the telescope, the imaging system can focus for a number of hours on a single location in space.To learn more about CCD refer
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S + 6 HNO3 H₂SO4 + 6 NO₂ + 2 H₂O
HNO3 to H2O has a stoichiometric ratio of 6:2.
To calculate the moles of HNO3, use 9 grams.
HNO3:H2O 6:2 9 grams/63 grams/mol = 0.143 moles.
0.048 moles of H2O are equal to 0.143*2/6.
water mass =0.048moles*18g/mol=0.864g
0.9 grams, to the closest tenth.
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Correct Question: How many moles of HNO3 required to react completely with 9grams of sulfuric acid?
H2O2→H2O+12O2
Hydrogen peroxide decomposes to produce water and oxygen according to the equation above. An experimentally determined graph for the first-order decomposition of hydrogen peroxide is provided below.
Which of the following best identifies the rate constant k for the reaction based on the information in the plot of ln[H2O2]versus time (t) ?
A. k=ln[H2O2 at t=0s
B. k=ln[H2O2]at t=500s
C. k=−(slope of plot)
D. k=−1(slope of plot)
The link between the rate constant and temperature k = A * exp(-E /(R * T)). The units of the rate constant, k, are impacted by the overall reaction. k=−(slope of the plot) option c is correct.
Are the byproducts of hydrogen peroxide's breakdown water and oxygen?As hydrogen peroxide decomposes, water and oxygen are generated. The uncatalysed activation energy of the processes is 86 kJ/mol. MnO2 and acetanilide have activation energies of 49 and 112 kJ/mol, respectively.
How can one tell the order of a decomposition reaction?Add the exponents of each component to find the overall reaction order. This number often falls between one and two.
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Answer:
See explanation below
Explanation:
The link between the rate constant and temperature k = A * exp(-E /(R * T)). The units of the rate constant, k, are impacted by the overall reaction. k=−(slope of the plot) option c is correct.
Are the byproducts of hydrogen peroxide's breakdown water and oxygen?
As hydrogen peroxide decomposes, water and oxygen are generated. The uncatalysed activation energy of the processes is 86 kJ/mol. MnO2 and acetanilide have activation energies of 49 and 112 kJ/mol, respectively.
How can one tell the order of a decomposition reaction?
Add the exponents of each component to find the overall reaction order. This number often falls between one and two.
12) The reaction of 50 mL of C12 gas with 50 mL of CH4 gas via the equation: C12 (g) + CH4 (g) → HCl (g) + CH3C1 (g)
will produce a total of
A) 100
mL of products if pressure and temperature are kept constant.
B) 50
C) 200
D) 150
E) 250
The reaction of 50 mL of C12 gas with 50 mL of CH4 gas via the given equation, will produce a total volume of 100 mL (Option A)
How do I determine the total volume of the products?The total volume of the products can be obtained as illustrated below:
We shall assume the pressure and temperature are kept constant.
First, we shall determine the limiting reactant. This is shown belo:
Cl₂(g) + CH₄(g) → HCl(g) + CH₃Cl(g)
From the balanced equation above,
1 mL of Cl₂ required 1 mL of CH₄
Thus,
50 mL of Cl₂ will also require 50 mL of CH₄
Thus, both reactants are limiting reactants.
Now we shall determine the volume of each products. Details below:
For HCl:
From the balanced equation above,
1 mL of Cl₂ reacted to produce 1 mL of HCl
Therefore,
50 mL of Cl₂ will also react to produce 50 mL of HCl
For CH₃Cl:
From the balanced equation above,
1 mL of Cl₂ reacted to produce 1 mL of CH₃Cl
Therefore,
50 mL of Cl₂ will also react to produce 50 mL of CH₃Cl
Finally, we shall determine the total volume of the products. Details below:
Volume of HCl = 50 mLVolume of CH₃Cl = 50 mLTotal volume =?Total volume = volume of HCl + volume of CH₃Cl
Total volume = 50 + 50
Total volume = 100 mL (Option A)
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Match each hydrocarbon class to its structure.
4
carboxylic acid
H
H
HT
H
H
H
amine
NH₂
halocarbon
H
OH
alcohol
H.
H
H.
'H
OH
'H
H-
-CI
The tile's suggested answers include amine, alcohol, carboxyl group, and halocarbon.
Gasoline is it a hydrocarbon?Hydrocarbons are organic substances comprised of hydrogen and carbon, and include petroleum, methane gas, and coal. Alkanes are both a highly combustible chemical and the main source of fuel in the planet. Its uses include diesel, jet fuel, propane, petrol, and petroleum, to name a few.
What makes it a hydrocarbon?The most fundamental category of organic compounds is referred to as a hydrocarbon. As their name implies, they are exclusively made up of the elements hydrogen and carbon. Atoms surround one or more core carbon atoms in hydrocarbon molecules, which are branching or chain-like in shape.
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The complete question is-
Drag each tile to the correct image. Match each hydrocarbon class to its structure. carboxylic acid amine halocarbon alcohol.
Select the atomic models that belong to the same element.
The image a and d are the atomic models that belong to the same element.
What is an atom?A chemical element is uniquely defined by its atoms, which are tiny pieces of substance. An atom is made up of a core nucleus and one or more negatively charged electrons that orbit it.
Based on atomic models, the big red ball and big yellow ball represent the proton and neutron of an atom, respectively, while the small blue outer ball symbolizes the electron of an atom.
The number of neutrons in an atom of the same element can vary, while the number of protons is always the same.
Isotopy is the name given to this phenomena. Atoms that have variable numbers of neutrons but the same number of protons are called isotopes.
The atomic models at the top right and bottom left corners of these structures, respectively, represent isotopes.
They have the same number of proton but only differ in the number of neutrons. The elements have an arrangement of hydrogen atoms.
Thus, image a and d is showing of same atom.
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Which of the carbons in Compound 3 corresponds to the carbon marked with an asterisk in Compound 4a?
A.C1
B.C2
C.C3
D.C4
The carbon in Compound 3 matches the carbon in Compound 4a with an asterisk is C2. Therefore, option B is correct.
Alpha-cadinol is a cadinane sesquiterpenoid that has a hydroxy group at position 10. It acts as a fungicide and a plant metabolite.
This compound is synthesized in two main steps. In the first step, compound 1 undergoes nucleophilic addition to compound 2. Then, the product compound 3 formed will undergo intramolecular aldol condensation. This cyclic product further undergoes dehydration and forms two isomers compound 4a and compound 4b. The compound 4a only is converted to alpha-cadinol.
In the conversion of compound 3 to compound 4a, carbon 2 containing acidic hydrogen will deprotonate and attack the carbonyl of the 5-carbon ring. Therefore, the asterisk is carbon 2.
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how is called transition of a substance directy from solid to gas
Answer:
Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase.
How many grams of propane contains the same number of carbon atoms as those in 1.0g C2H5OH ?
Answer:
Exercises Example 6. How Many Moles Of Carbon Atoms And How Many Carbon Atoms Are Contained In 1.0 G Of C,H,OH
Explanation:
The mass of the propane that would have the same number of carbon atoms is 0.63 g.
What is the number of the carbon atoms?We know that we can be able to obtain the number of the carbon atoms by the use of the simple stoichiometry of the reaction as we have it in the question that we have been asked here.
We can see that we have the molar mass of the ethanol as we can see as 46 g/mol. We have to obtain the number of moles of the ethanol that we have in the compound as follows;
Number of moles = 1 g/ 46 g/mol = 0.022 moles
Number of the carbon atoms that we have is; 0.022 moles * 2 * 6.02 * 10^23 = 2.6 * 10^22 atoms
Now the number of the grams of the propane that we have is;
2.6 * 10^22 = x * 3 * 6.02 * 10^23
Where x is the number of moles present
x = 2.6 * 10^22 / 1.806 * 10^24
x = 1.44 * 10^-2 moles
x = 0.0144 moles
Given that the molar mass of the propane is 44 g/mol
mass = 0.0144 moles * 44 g/mol
Mass = 0.63 g
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Based on what you know about types of reactions, create 3 testable questions that help you determine which type of reaction has occurred in your reaction scenario. For hydraulic acid and magnesium reaction.
The substances that undergo a chemical reaction are known as reactants, whilst the chemicals that are produced are known as products.
How many type of reaction are present?The 5 primary types of chemical reactions are:
Combination reactionDecomposition reactionDisplacement reactionDouble Displacement reactionPrecipitation ReactionThrough a physical transition, the shape or form of the material changes, but the type of substance it contains does not. However, when there is a chemical shift, the nature of the matter changes, and at least one new material with novel features is produced. The transition between physical and chemical states cannot be bridged in a straight line.
Writing a balanced chemical equation has the goal of explaining the resulting products and reactants (end results). The ratios in which they respond allow you to calculate how many reactants you require and how many products you can produce.
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Please help to fill these information
Information transfer entails the transmission of messages containing user information over a communication channel from a source to a sink. Information transfer is analogous to data transmission in this sense, which emphasizes more concrete, technical elements.
What is morse code?A technique called Morse code is used in communications to encrypt text as defined sequences of two distinct signal durations, known as dots and dashes.
Before morse code communication required face-to-face interaction, reading written words, using drums, smoke signals, and semaphore devices, or sending coded communications.
Morse code was invented by Samuel. F.B Morse. The information are passed as electrical signals through Morse code. For instance through the sharing of audio files, video files or text messages etc we are transferring informations.
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Which characteristic describes most metals in the solid phase?
Non metals in the solid phase are brittle and lack metallic luster. Option 4
What are the non metals?Let us note that the metals has to do with the elements that occur at the left hand side of the periodic table and most of them are solid. They are known to be electro positive and a lot of them are sonorous when struck as well as give out a characteristic luster. This is why the metals can be used in the making of a lot of the acoustic instruments that are used ion the playing of music as well as in the production of jewelry.
In the case of the non metals only a few of the elements are found to be solid and a lot of them can be found to be either liquid or gas and they are also known to have a low temperature range thus the boiling and the melting points of the elements can be seen to be quite and very low from the periodic table of the element.
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Missing parts;
Which characteristics describe most nonmetals in the solid phase?
1
They are malleable and have metallic luster.
2
They are malleable and lack metallic luster.
3
They are brittle and have metallic luster.
4
They are brittle and lack metallic luster.
How does the temperature change as you go from the surface toward the center of Earth How does the temperature change as you go from the surface toward the center of Earth
As you go deeper into the Earth, the temperature increases due to the heat that is generated within the Earth's interior.
The Earth's interior is hot due to the heat of formation of the planet and the decay of radioactive elements. The temperature also increases with depth due to the high pressure that is exerted on the Earth's crust and mantle by the weight of the overlying material.
The rate at which the temperature increases with depth varies depending on the location and geology of the area. In general, the temperature increases by about 25 to 30 degrees Celsius per kilometer of depth in the crust. In the mantle, the temperature increases more slowly, at a rate of about 1 to 3 degrees Celsius per kilometer of depth. The temperature at the core-mantle boundary, which is located about 2,900 kilometers below the surface, is estimated to be about 3,700 degrees Celsius. The temperature at the center of the Earth, where the pressure is highest, is thought to be about 5,500 degrees Celsius.
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