For the following reaction, 4.27 grams of hydrogen gas are allowed to react with 11.0 grams of ethylene (C2H4). hydrogen (g) ethylene (C2H4) (g)-ethane (C2H6) (g) What is the maximum amount of ethane (C2H6) that can be formed? 18.8 grams What is the FORMULA for the limiting reagent?CH What amount of the excess reagent remains after the reaction is complete? 3.54 grams
Answers
For the following reaction, 4.27 grams of hydrogen gas are allowed to react with 11.0 grams of ethylene (C2H4). The maximum amount of ethane (C2H6) that can be formed is 11.79 g. The formula for the limiting reagent is C2H4. The amount of the excess reagent remains after the reaction is complete is is 3.48 g.
The balanced chemical reaction for the given scenario is given below: C2H4 + H2 → C2H6Ethylene (C2H4) and hydrogen (H2) react to give ethane (C2H6).
The balanced chemical equation provides the stoichiometry of the reaction. The stoichiometric ratio can be used to determine the moles of reactants and products involved in the reaction. Since the stoichiometric ratio is in terms of moles, we need to convert the mass of the given reactants to moles.
Let's start by calculating the number of moles of hydrogen and ethylene.
Number of moles of hydrogen (H2) = mass / molar mass = 4.27 g / 2.016 g/mol = 2.12 mol
Number of moles of ethylene (C2H4) = mass / molar mass = 11.0 g / 28.054 g/mol = 0.392 mol
According to the stoichiometry of the reaction, 1 mole of ethylene (C2H4) reacts with 1 mole of hydrogen (H2) to form 1 mole of ethane (C2H6).
Since ethylene (C2H4) is present in less quantity as compared to hydrogen (H2), ethylene (C2H4) will be the limiting reagent in this reaction. Therefore, the maximum amount of ethane (C2H6) that can be formed is obtained by using the number of moles of limiting reagent i.e. ethylene.
Number of moles of ethane (C2H6) = number of moles of limiting reagent = 0.392 mol
Mass of ethane (C2H6) = number of moles × molar mass = 0.392 mol × 30.070 g/mol = 11.79 g
Thus, the maximum amount of ethane (C2H6) that can be formed is 11.79 g.
The limiting reagent is the reactant that is consumed completely during the reaction. Since ethylene (C2H4) is the limiting reagent in this reaction, its formula is C2H4.
Excess reagent is the reactant that remains unconsumed after the reaction is complete. We have already determined that ethylene (C2H4) is the limiting reagent in this reaction, which means that hydrogen (H2) is the excess reagent.
Hence, the amount of the excess reagent i.e. hydrogen (H2) remaining after the reaction is complete is obtained by subtracting the amount of hydrogen used in the reaction from the amount of hydrogen available.
Number of moles of hydrogen used = number of moles of limiting reagent = 0.392 mol
Number of moles of hydrogen available = 2.12 mol
Number of moles of hydrogen remaining = 2.12 mol - 0.392 mol = 1.73 mol
Mass of hydrogen remaining = number of moles × molar mass = 1.73 mol × 2.016 g/mol = 3.48 g
Therefore, the amount of the excess reagent (hydrogen) that remains after the reaction is complete is 3.48 g (approx).
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Related Questions
chemical analysis of an organic compound found the following composition: 40.0% c, 53.5% o, and 6.7% h. if the molar mass is 180.2 g/mol, how many empirical formula units are there in the molecular formula?
Answers
Empirical formula units is 2 and the molecular formula is CxHyOz.
Molar mass-The molar mass of a chemical compound is determined by dividing its mass by the quantity of that compound, expressed as the number of moles in the sample, measured in moles. The molar mass of a substance is a bulk attribute rather than a molecular one.Calculate the molar mass of a substance by adding the molar masses of its constituent atoms.
There are 40.0 in 100 g of the unknown.
40.0⋅g/12.011⋅g⋅mol−1C
6.7⋅g/1.00794⋅g⋅mol−1 H and
53.5⋅g/16.00gmol−1
We divide by to get C : H : O.
=3.33:6.65:3.34
. We get an empirical formula of C H 2 O by dividing each elemental ratio by the LOWEST number, which is close enough to WHOLE numbers.
Now the molecular formula is always a multiple of the empirical formula; i.e.
(EF)n=MF.
So 60.0⋅g.mol−1=n×(12.011+2×1.00794+16.00)g⋅mol−1.
Clearly n=2, and the molecular formula is×(CH2O) =CxHyOz.
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2 NH3(g) → N2(g) + 3 H2(g)
What type of reaction is shown above?
A)
single replacement
B)
decomposition
C)
double replacement
D)
synthesis
Answers
Answer is B.
AB —-> A + B
Answer:
Decomposition Reaction
Explanation:
In the provided reaction, we can see that Ammonia is getting decomposed into Nitrogen and Hydrogen gas.
Another way to think about it is that Decomposition is nothing but one thing giving rise to 2 or more than 2 things.
Since our Ammonia is giving rise to 2 gases, this reaction is an example of Decomposition reaction
The gas-phase reaction between nitrogen and oxygen was carried out in a device designed to maintain constant pressure. There are two cylinders of equal volume with a reaction arrow between them. The cylinder on the left has two molecules of O 2 and two molecules of N 2. The cylinder on the right has four molecules of N O. A constant pressure is applied to both cylinders Write the balanced chemical equation for the reaction between nitrogen oxygen. Include physical states. Predict wether the work for the reaction is positive or negative or zero. Using the date determine the enthalpy of the reaction for the formation of 1 mole
Answers
Answer:
The answer should be that a constant pressure is applied to both cylinders and they are balanced chemical equations for the reaction between nitrogen oxygen.
Explanation:
explain the corpuscular nature of matter?
please gimme short answer of it..
Answers
The corpuscular nature of matter is told by Newton. The theory says of the microscopic structure of matter, tells the behavior of matter.
What is the corpuscular nature of matter?The corpuscular nature of matter is given by Newton. The matter is made up of small particles, like ions and molecules. Light is composed of tiny particles. Matter can be found everywhere in the Universe. But it can be found in different forms.
Thus, Newton explains the corpuscular nature of matter. According to the hypothesis, a substance's microscopic structure can be used to predict its behavior.
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There are 120.0 mL of O2 at 700. 0 mmHg and 15⁰ C. What is the number of grams present?
Answers
Answer:
0.1498 g of O2.
Explanation:
The Behavior of Gases => Ideal Gas Law.
The ideal gas law is a single equation that relates the pressure, volume, temperature, and the number of moles of an ideal gas, which is:
\(PV=nRT,\)where P is pressure in atm, V is the volume in liters, n is the number of moles, R is the ideal gas constant (0.082 L*atm/mol*K), and T is the temperature in the Kelvin scale.
So we have to convert pressure from 700.0 mmHg to atm, volume from 120.0 mL to L, and 15 °C to K.
Let's convert pressure taking into account that 1 atm equals 760 mmHg, like this:
\(700.0\text{ mmHg}\cdot\frac{1\text{ atm}}{760\text{ mmHg}}=0.9211\text{ atm.}\)Remember that 1 L equals 1000 mL, so 120.0 mL would be equal:
\(120.0\text{ mL}\cdot\frac{1\text{ L}}{1000\text{ mL}}=0.1200\text{ L.}\)And the conversion from °C to K is just sum °C with 273, so 15 °C in K is:
\(K=\degree C+273=15\degree C+273=288\text{ K.}\)Finally, we can use the ideal gas formula, solving for 'n' (number of moles) and replacing the data that we have, as follows:
\(\begin{gathered} n=\frac{PV}{RT}, \\ \\ n=\frac{0.9211\text{ atm}\cdot0.1200\text{ L}}{0.082\frac{L\cdot atm}{mol\cdot K}\cdot288\text{ K}}, \\ \\ n=4.680\cdot10^{-3}\text{ moles.} \end{gathered}\)Now, the final step is to convert 4.680 x 10⁻³ moles of O2 to grams using the molar mass of O2 that can be calculated using the periodic table, which is 32 g/mol. The conversion will look like this:
\(4.68\cdot10^{-3\text{ }}moles\text{ O}_2\cdot\frac{32\text{ g O}_2}{1\text{ mol O}_2}=0.1498\text{ g O}_2.\)The answer would be that there are 0.1498 g of O2.
2.
How many molecules are in 36 g of ammonium (NH4)?
a. 3.01 x 1023 molecules
b. 6.02 x 1023 molecules
C. 1.2 x 1024 molecules
d. 1.8 x 1024 molecules
Answers
Answer:
b. 6.02 x 1023 molecules
Explanation:
The formula mass of ammonia is 14 + 1 × 3 = 17.
The number of moles in 27.6g ammonia is 27.6 ÷ 17 = 1.62 mol.
A mole is 6.02 × 10²³, so the number of hydrogen atoms in a 1.62 moles of ammonia is 1.62 × 6.02 × 10²³ × 3 = 2.93 × 10² atoms.
The view on ethics of war that maintains that limits in warfare are merely pragmatic or prudential and that the goal is strength and victory is known as
Answers
The view on ethics of war that maintains that limits in warfare are merely pragmatic or prudential and that the goal is strength and victory is known as Realism in the ethics of war.
Realism in the ethics of war argues that the primary objective of warfare is to achieve a position of strength and secure victory, regardless of the means employed. This perspective emphasizes the importance of national interest, power dynamics, and strategic calculations in determining the conduct of war. According to realists, ethical considerations such as moral principles or constraints are secondary to achieving military objectives. Realists contend that the pursuit of victory should take precedence over other ethical concerns, as success in war is crucial for maintaining one's own security and deterring potential adversaries. While acknowledging the existence of international laws and treaties, realists view them as tools for advancing national interests rather than as absolute moral imperatives.
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An object's mass is a measure of how much matter makes it up. An object's weight is a measure of the gravitational force that acts
on it. An object's mass is always its weight
OA
equal to
ОВ.
proportional to
C.
double
OD
half of
Answers
Answer:
its a
Explanation:
Answer:
c
Explanation:
the same
3. If the values for both mass and volume double,
the value for density will
Answers
If I have 340 mL of a 1.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?
Answers
Answer:
0.5667 M ≅ 0.57 M.
Explanation:
It is known that the no. of millimoles of a solution before dilution is equal to the no. of millimoles of the solution after the dilution.
It can be expressed as:
(MV) before dilution = (MV) after dilution.
M before dilution = 1.5 M, V before dilution = 340 mL.
M after dilution = ??? M, V after dilution = 340 mL + 560 mL = 900 mL.
∴ M after dilution = (MV) before dilution/(V) after dilution = (1.5 M)(340 mL)/(900 mL) = 0.5667 M ≅ 0.57 M.
what is weather how to fold clothes
Answers
Answer:
Weather is : the state of the air and atmosphere at a particular time and place : the temperature and other outside conditions (such as rain, cloudiness, etc.) at a particular time and place. And how to fold clothes:
Fold in one side of the shirt towards the centre, about a third.
Fold the sleeve back the other direction, away from the centre.
Long sleeves can be folded again down towards the hem.
Repeat on the other side.
Fold the collar end towards the bottom hem, making a rectangle.
Explanation:
Answer:
Weather is the state of the air and atmosphere at a particular time and place: the temperature and other outside conditions (such as rain, cloudiness, etc.) in a specific time and place. And how to fold clothes
Explanation:
Fold about a third in one side of the shirt towards the center.
Fold the sleeve back in the other direction, away from the center.
Long sleeves can be folded again down towards the hem.
Repeat on the other side.
Fold the collar end towards the bottom hem, making a rectangle.
Consider the following balanced equation:H₂SO4 (aq) + 2LiOH (aq) --> 2 H₂O (1) + Li₂SO4 (aq)A 33.98 mL sample of H₂SO4 is completely titrated with 18.19 mL of 1.35 M LIOH. What is the molarity of the H₂SO4?
Answers
1) Write the chemical equation.
\(H_2SO_{4(aq)}+2LiOH\rightarrow2H_2O+Li_2SO_4\)2) List the known and unknown quantities.
Sample: H2SO4
Volume: 33.98 mL.
Concentration: unknown
Titrant: LiOH
Volume: 18.19 mL = 0.01819
Concentration: 1.35 M
3) Find moles of LiOH
3.1- Set the equation
\(M=\frac{moles\text{ }of\text{ }solute}{liters\text{ }of\text{ }solution}\)3.2- Plug in the values
\(1.35\text{ }M=\frac{moles\text{ }of\text{ }solute}{0.01819\text{ }L}\)\(moles\text{ }of\text{ }solute=1.35\text{ }M*0.01819\text{ }L\)\(moles\text{ }LiOH=0.0245565\)The number of moles of LiOH in the reaction is 0.0246.
4) Find moles of H2SO4
The molar ratio between H2SO4 and LiOH is 1 mol H2SO4: 2 mol LiOH.
\(mol\text{ }H_2SO_4=0.0246\text{ }mol\text{ }LiOH*\frac{1\text{ }mol\text{ }H_2SO_4}{2\text{ }mol\text{ }LiOH}\)\(mol\text{ }H_2SO_4=0.01228\text{ }mol\text{ }H_2SO_4\)5) Molarity of H2SO4
Sample: H2SO4
Moles: 0.01228
Volume: 33.98 mL.
5.1- Convert mL to L.
1 L = 1000 mL
\(L=33.98\text{ }mL*\frac{1\text{ }L}{1000\text{ }mL}=0.03398\text{ }L\)5.2- Set the equation to find molarity.
\(M=\frac{moles\text{ }of\text{ }solute}{liters\text{ }of\text{ }solution}\)\(M=\frac{0.01228\text{ }mol\text{ }H_2SO_4}{0.03398\text{ }L}\)\(M=0.3614\text{ }M\)The molarity of the sample is 0.3614 M H2SO4.
What are indicators? How methyl orange and phenolphthalein changes their colour in acidic and basic solutions? How litmus paper changes its colour in different solutions?
Answers
Answer:
See the answer below
Explanation:
In chemistry, indicators are substances that are capable of changing colors with respect to the pH. Each indicator has its characteristic color in acidic pH and another characteristic color in alkaline pH.
Methyl orange indicator appears red in acidic solution and yellow in basic solutions. Phenolphthalein is usually colorless in acidic solutions and appears pink in basic solutions. A red litmus paper will turn blue in alkaline solutions while a blue litmus paper will turn red in acidic solutions.
Neon is located in the last group of the periodic table. How many valence electrons does the element neon have? (5 points)
1
2
4
8
Answers
Answer:
it's 8
Explanation:
the last group of the periodic table is group 8. so all elements in a group should have the same number of valency electrons
Voyager 2 traveled approximately 4.4 billion miles in 2.0 years. What was Voyager 2's average speed expressed in m/s?
Answers
The average speed of a body is the ratio of distance covered to time taken.
From the question, we have the following parameters;
Distance covered = 4.4 * 10^9 miles or 7081.1136 meters
Time taken = 2.0 years or 6.307 * 10^7 seconds
Average speed = Distance covered/ Time taken
Average speed = 7081.1136 meters/6.307 * 10^7 seconds
Average speed = 1.12 * 10^-4 m/s
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explain how sand is form
Answers
Answer:
Sand comes from many locations, sources, and environments. Sand forms when rocks break down from weathering and eroding over thousands and even millions of years. Rocks take time to decompose, especially quartz (silica) and feldspar .
Explanation:
How many elements do all the “s” orbital span (go across) in each period?
a) 2
b) 6
c) 10
d) 14
Answers
The s sublevel has just one orbital, so can contain 2 electrons max.
The elements do all the “s” orbital span (go across) in each period is 2. Thus option a is correct.
What are elements?Elements are defined as a pure substance made up of only one sort of atom with the same number of protons in its nucleus.
It can also be defined as the a substance that can't be broken down into anything else.
Sublevels are defined as a quantum theory-defined energy level Sublevels are energies associated with electrons in chemistry.
There are mainly four sublevels
s sublevelp subleveld sublevelf sublevelThus, the elements do all the “s” orbital span (go across) in each period is 2. Thus option a is correct.
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The temperature of a 0.65L sample of carbon dioxide gas is 580K. If the pressure remains constant, what is the new volume of the gas if the temperature increases to 1300K?
Answers
by titration, it is found that 24.7 ml of 0.179 m naoh(aq) is needed to neutralize 25.0 ml of hcl(aq). calculate the concentration of the hcl solution.
Answers
By titration, it is found that the concentration of the HCl solution is 0.175 M.
To solve this problem using titration, we need to use the balanced chemical equation for the neutralization reaction between NaOH and HCl:
NaOH + HCl → NaCl + H2O
From the equation, we know that 1 mole of NaOH reacts with 1 mole of HCl to produce 1 mole of NaCl and 1 mole of H2O. Therefore, we can use the following formula to calculate the concentration of the HCl solution:
M(HCl) = (M(NaOH) x V(NaOH)) / V(HCl)
Where:
M(HCl) = concentration of HCl solution
M(NaOH) = concentration of NaOH solution (given as 0.179 M)
V(NaOH) = volume of NaOH solution used (given as 24.7 mL or 0.0247 L)
V(HCl) = volume of HCl solution used (given as 25.0 mL or 0.0250 L)
Plugging in the values, we get:
M(HCl) = (0.179 M x 0.0247 L) / 0.0250 L
M(HCl) = 0.175 M
Therefore, the concentration of the HCl solution is 0.175 M.
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I have a balloon containing 1/6 mol He. How many He atoms are in the balloon?
Answers
There are approximately 1 x 10^23 He atoms in a balloon containing 1/6 mol Helium.
To answer this question, we first need to understand what a mole is. A mole is a unit of measurement used in chemistry that represents the amount of substance in a system. One mole of any substance contains 6.02 * 10^{23} particles, which is known as Avogadro's number.
In this case, we have a balloon containing 1/6 mol He. This means that there are 1/6 * 6.02 * 10^{23} He atoms in the balloon. Simplifying this, we get:
1/6 * 6.02 * 10^{23} = 1.0033 * 10^{23}
Therefore, there are approximately 1 x 10^23 He atoms in the balloon.
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complete question:
I have a balloon containing 1/6 mol He. How many He atoms are in the balloon?
a) 10^23
b) 4 million
c) 0.01
d) 1 x 10^21
why do the aquatic plants not break down by water current?
Answers
Complete combustion of a 0.600-g sample of a compound in a bomb calorimeter releases 24.0 kj of heat. the bomb calorimeter has a mass of 1.30 kg and a specific heat of 3.41 j/(gi°c). if the initial temperature of the calorimeter is 25.5°c, what is its final temperature? use q equals m c subscript p delta t.. 30.9°c 34.5°c 44.0°c 51.5°c
Answers
The final temperature of the bomb calorimeter is 30.9°C.
What is combustion reaction?Combustion reactions are those reactions in which a compound completly decompose in to carbon dioxide and water molecule.
The final temperature will be calculated by using the equation:
Q = mc(T₂ – T₁), where
Q = relesed heat from calorimeter = 24kJ = 24000J
m = mass of calorimeter = 1.30kg = 1300g
c = specific heat of calorimeter = 3.41 J/(g°C)
T₁ = initial temperature of calorimeter = 25.5°C
T₂ = final temperature of calorimeter = to find?
On putting all these values on the above equation and calculate for T₂, we get
T₂ = 24000/(1300)(3.41) + 25.5
T₂ = 30.9°C
Hence, correct option is (1) i.e. 30.9°C.
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Answer:
30.9
Explanation:
right on edge 2022
why does addition of hcl cause the product to precipitate? support your answer with a chemical equation.
Answers
The addition of HCl can cause a product to precipitate because it increases the concentration of H+ ions and Cl- ions in the solution. These ions can then react with other ions present, forming insoluble salts that precipitate out of the solution.
For example, consider the reaction of silver nitrate (AgNO3) and hydrochloric acid (HCl):
AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)
In this reaction, the silver ions (Ag+) from silver nitrate combine with the chloride ions (Cl-) from hydrochloric acid to form insoluble silver chloride (AgCl), which precipitates out of the solution. The remaining ions, H+ and NO3-, combine to form nitric acid (HNO3), which remains dissolved in the solution.
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answer truthfully:))
Answers
A to B : the motion is increasing so the velocity is increasing as well and you can calculate it with the slope.
B to C : the motion is constant. So the velocity is 0
C to D : the motion is decreasing so the velocity is decreasing as well.
Hope you will understand bc English is not my first language....
Given the balanced ionic equation representing a reaction:
Cu(s) + 2Ag+ (aq) → Cu²+ (aq) + 2Ag(s)
During this reaction, electrons are transferred from
1. Cu(s) to Ag+ (aq)
2. Cu²+ (aq) to Ag(s)
3. Ag(s) to Cu²+ (aq)
4. Ag (aq) to Cu(s)
Answers
During the reaction given above, electrons are transferred from Cu(s) to Ag+ (aq) (option 1).
What is ionic equation?An ionic equation is a chemical equation in which the dissolved ionic compounds are written as separated ions.
According to this question, a balanced ionic equation is given as follows: Cu(s) + 2Ag+ (aq) → Cu²+ (aq) + 2Ag(s)
Based on the above equation, electrons are transferred from solid copper to silver ion, making copper the reducing agent while silver ion is the oxidizing agent.
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why organic compounds have a slow rate of reaction
Answers
Answer:
first help me plz plz
Explanation:
coz i hate chemistry
5. Name the compound which contain Strontium, Fluorine, and Oxygen.
Options:
Strontium fluorate
Strontium fluoride
Strontium chlorate
Strontium fluorine
when shaking salt from a salt shaker, you see that the salt, which is sodium chloride (nacl), is in the form of many small crystals. what bonds the na particles and cl particles in place inside the crystals?
Answers
As a result, sodium chloride, also referred to as table salt, is created when an electron is lost from the sodium atom's outermost shell and is subsequently gained by the chlorine atom.
Water and sodium chloride are what kind of a compound?It is a salt of inorganic sodium and chloride. A salt and water solution is saline. The term "saline" typically refers to physiological or normal saline, an aqueous solution that contains 0.9% sodium chloride.
What happens to water when NaCl is added?The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart. When the salt compounds are separated, water molecules surround the sodium and chloride atoms.
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A gas occupies 0.67 L at 350 K. What temperature is required to reduce
the volume to 0.21 L *
Answers
Answer:
109.7K
Explanation:
Using Charles law equation as follows;
V1/T1 = V2/T2
Where;
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
V1 = 0.67L
V2 = 0.21L
T1 = 350K
T2 = ?
Using the formula above;
0.67/350 = 0.21/T2
0.001914 = 0.21/T2
0.001914T2 = 0.21
T2 = 0.21/0.001914
T2 = 109.7K
If 3.0 moles of a gas are in a 60.0 liters container at 400.0 K, what is the pressure, in atm, inside
the container?
A.
0.61 atm
B.
16 atm
C.
1.6 atm
Answers
Answer:
C. 1.6 atm
Explanation:
PV = nRT
Solve for P --> P = nRT/V
n = 3.0 mol
R = 0.08206 L atm / mol K
T = 400.0 K
V = 60.0 L
P = (3.0)(0.08206)(400.0) / (60.0) = 1.6 atm
How to find the molar mass of FeCl3
Answers
The molar mass of FeCl3 is 162.2 g/mol.
To find the molar mass of FeCl3 (iron(III) chloride), you need to determine the atomic masses of the elements in the compound and add them up according to the number of atoms of each element in the formula.
The molar mass is expressed in grams per mole (g/mol).
The atomic masses of the elements in FeCl3 are:
Iron (Fe) = 55.85 g/mol
Chlorine (Cl) = 35.45 g/mol (the atomic mass of chlorine is based on its most abundant isotope, which has a mass number of 35)
The formula for iron(III) chloride is FeCl3, which indicates that there is one atom of iron and three atoms of chlorine in each molecule of the compound. Therefore, to calculate the molar mass of FeCl3, you can add up the atomic masses of one iron atom and three chlorine atoms:
Molar mass of FeCl3 = (1 x 55.85 g/mol) + (3 x 35.45 g/mol)
= 162.2 g/mol
Therefore, the molar mass of FeCl3 is 162.2 g/mol.
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