# Chemistry

posted by .

4NH3 + 7O2 --> 4NO2 + 6H20

1) How many grams of oxygen are necessary to produce 4.50 moles of NO2?

2) How many molecules of water are produced when 2.25 moles of ammonia are completely reacted?

• Chemistry -

1.Convert 4.5 mol NO2 to mols oxygen using the coefficients in the balanced equation.
Convert mols oxygen to grams oxygen. grams oxygen = mols oxygen x molar mass oxygen.

2. Convert 2.25 mols NH3 to mols H2O using the coefficients of the equation.
Convert mols H2O to molecules H2O remembering that 1 mol contains 6.02 x 10^23 molecules.

## Similar Questions

1. ### science

from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O. How many grams of oxygen are necessary to produce 4.50 moles of NO2?
2. ### chemistry

from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O How many molecules of water are produced when 2.25 moles of ammonia are completely reacted?
3. ### Chemistry

Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?
4. ### chem

Ammonia reacts with oxygen to form nitrogen dioxide and water according to the following equation: 4NH3(g) + 7O2(g) ® 4NO2(g) + 6H2O(g) You react ammonia and oxygen, and at the end of the experiment you find that you produced 27.0 …
5. ### stoichiometry

Ammonia gas reacts with oxygen gas according to the following equation: 4NH3 + 5O2----4NO + 6H2O a. How many moles of oxygen gas are needed to react with 23 moles of ammonia?
6. ### chemistry

1) If a total of 13.5 mol NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of COs and NA3C6H5O7 will be produced?
7. ### Chemistry

If 8.00 moles of NH3 reacted with 14.0 moles of O2, how many moles of H2O will be produced?
8. ### chemistry

if excess NH3 is reacted with 0.438 mol of O2, how many moles of H2O will be produced?
9. ### Chemistry

Consider the following reaction: 4NH3 + 7O2 (arrow) 4NO2 + 6H2O. A) How many moles of NH3 react with 5.64 mol of O2?
10. ### Chemistry (stoichiometry)

22 moles of benzene are completely reacted with molecular oxygen, how many moles of carbon dioxide will be produced?

More Similar Questions

Post a New Question