0
1. Given: mass = 0.334g of C2H6, CAtomicWeight = 12.01, HAtomicWeight = 1.008
Required:
a. Molar Mass of Ethane
b. Number of molecules of C2H6 in 0.334g of C2H6
Formula:
a. (n = (2 x CAtomicWeight) + (6 x HAtomicWeight)
b. mass x (1 mole / a ) x (6.022x1023 molecules / 1 mole)
Solution:
a. Molar Mass of Ethane
n = (2 x 12.01) + (6 x 1.008)
n = 24.02 + 6.0498
n = 30.0698
b. Number of molecules
n = 0.334 x (1 mole / 30.0698 g) x (6.022x1023 molecules / 1 mole)
n = 6.689x1021 molecules
FINAL Answer: The are 6.689x1021 molecules in 0.334g of Ethane
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How many molcules are present in 42.0g of Cl2?
How many molecules are present in 42.0g of Cl2
How many molecules are present in 2c6h12o6?
12 molecules of carbon 24 of hydrogen 12 of oxygen
How many moles are present in 1.21 molecules of HBr?
2.01 mol
How many molecules of H2 are present in 0.175 moles of H2?
0.175 X Avogadro's Number = about 1.05 X 1023.
How many molecules are present in 13.77lb of magnesium bromide?
? molc' MgBr2 = (13.77lbs)(453.59g/1lbs)(1 mol/184.11g)(6.02e23 molc'/1 mol) 13.77 lbs =2.04e25 molecules
How many molecules of ethane are present in 0.334 grams of ethane?
mol. mass of ethane = 2x12.01+ 6x1.008= 30.01g/mol # of mole in 0.334 of ethane= 0.334/30.01= 0.01mol
How many carbon dioxide molecules will be formed in two ethane molecules?
Ethane does not have any molecule of carbon dioxide. However when ethane undergoes combustion then two molecules of carbon dioxide are formed (as ethane contains two carbon atoms).
How many molecules of ethane gas C2H6 are in 15 grams of the compound?
The number of molecules in 15 g ethane is approx. 3,011.10e23.
How many molecules are in 60 g of ethane?
Ethane is C2H6, with a molar mass of 30g/mol. 60g of ethane is 2mol. Avogadro's number (# of particles in a mole) = 6.02x1023. Avogadro x 2mol = 1.2x1024 ethane molecules.
How many molecules of ethane are present in 64.28 liters of ethane gas (C2H6) at STP?
at STP 1 mole occupies 22.4 litres. 64.28 / 22.4 is 2.8696428 moles. Multiply this by avagadro's constant (6.022*10^23) gives 1.7281x10^24 molecules
How many carbon atoms are contained in 5.50 gms of ethane?
30 g of ethane will have 6.023 x 1023 molecules of ethane So, 5.5 g will have 1.104 x 1023 molecules of ethane Since there are two carbon atoms, in one molecule of ethane, 5.5 g of ethane will have 2.208 x 1023 atoms of carbon.
How many carbon dioxide molecules will be formed from two ethane molecules?
I am presuming that you are asking how many carbon dioxide (CO2) molecules will be formed when two ethane (C2H6) molecules burn in a plentiful supply of oxygen. The following balanced equation is that of the burning of ethane in a plentiful supply of oxygen: C2H6 + 3.5O2 -----> 2CO2 + 3H2O. The number before each of the molecules in the equation tells us how many there are in this reaction. This means that for every one ethane molecule that is burnt, two carbon dioxide molecules are produced.
What is the name of the reaction in which many ethane molecules combine together?
You think probable to polymerization.
How many types of bonds present in ethane?
Only sigma bonds are present in ethane. There is one carbon-carbon sigma bond and six carbon-hydrogen sigma bonds in C2H6.
How many molecules are present in 3 moles of methanal?
The reaction is :- 2C2H6 + 7O2 ----------> 4CO2 + 6H2O When one mole ethane is combusted 7/2 moles of oxygen are used. When 3 moles of ethane are combusted 3 x 7/2 moles of oxygen used. No. of oxygen molecules consumed =6.022 x 1023 x7/2= 21.077 x 1023=2.107 x 1024 molecules.
How many c2h6 molecules are contained in 51.2 moles of ethane?
The chemical formula for ethane is C2H6 and there is 6.022 * 10^23 molecules in every mole. So to find your answer simply multiply 6.022 * 10^23 by 51.2 which gives: 3.083 X 10^25
How many molecules of water are present in 1g of water?
The answer is 0,166.10e23 molecules.
