# College Chemistry

posted by .

When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?

• College Chemistry -

balance the equation:

2C2H6+5O2>>4CO2 + 6H2O

figure the moles in 20 g ethane, and moles in 60 grams O2.

Notice, that you need 2.5x moles O2 as moles ethane. Do you have that much? If more, then ethane is the limiting reactant. If not, thenO2 is limiting.
so if ethane is limiting, then you get 3 times the moles of water that you have of ethane, if O2 is limiting, you get 6/5 the moles you have of O2.

## Similar Questions

1. ### chem

An automobile burns 65 grams of gasoline over 20 minutes. The gasoline combines with 100 grams of oxygen in this reaction, to form carbon dioxide and 47 grams of water. How much carbon dioxide is formed?
2. ### chemistry

I need help with a,b,and c. I tried to balance it but im having a little trouble Ethane gas, C2H6, burns in air and produces carbon dioxide and water vapor. a)write a balanced equation for this reaction. I know this isnt balanced but …
3. ### CHemistry

When O2 reacts with C2H6, according to the equation: 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O, how much CO2 is produced from 60.0 g of C2H6?
4. ### Chemistry

Ca(OH)2 reacts with CO2 to form CaCO3 and H2O. A. How many grams of CaCO3 will be formed if 4 grams of Ca(OH)2 are used?
5. ### Chem

When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
6. ### Chemistry

When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
7. ### Chemistry

C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react?
8. ### Chemistry

Consider the burning of LPG (propane C3H8)which produces carbon dioxide (CO2) and water vapor (H2O). The balanced chemical equation involving the reaction is C3H8+5O2= 3CO2+4H2O Suppose 1.5 moles of C3H8 will be used, assume the following: …
9. ### Chemistry

The reaction: H2C2O4 + CuO + Heat = ? This reaction was produced in organic elemental analysis to identify C and H. So I think CO2 is formed to react with Ca(OH)2 to giving CaCO3. Additionally was formed H2O, so I though H2 or H2O
10. ### chemistry

The combustion of 1.210 g of a mixture of CH4 and C2H6 gives 3.372 g of CO2 I have to determine the composition of the mixture (mastic %) and molar fraction of CH4 in the mixture CH4 + C2H6: CO2 + 2H2O C2H6 + O2: CO2 + H2O CH4 + C2H6 …

More Similar Questions

Post a New Question