Chemistry

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?

1. 👍
2. 👎
3. 👁
1. 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.

1. 👍
2. 👎

Similar Questions

Multiple choice When methane is burned with oxygen, the products are carbon dioxide and water. If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen, how many grams of carbon dioxide were produced in the

2. 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

3. 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? (29 mole) b. How may grams of NO are produced when 25

4. Chemistry

If 152 grams of ethane (C2H6) are reacted with 231 grams of oxygen gas, what is the excess reactant? 2C2H6 + 7O2(g) → 4CO2(g) + 6H2O(g)

1. science

from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O. How many grams of oxygen are necessary to produce 4.50 moles of NO2? I think its 11 grams or 22 grams but im not sure. please help!! First the number of moles of O2, molesO2=

2. chemistry

A mixture containing 50grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask is massed. What is the

3. Chemistry

If 8.00 moles of NH3 reacted with 14.0 moles of O2, how many moles of H2O will be produced? 4NH3 (g) + 7O2 (g) --> 4NO2 + 6H2O (g)

4. Chemistry

Refer to the following equation: 4NH3 + 7O2= 4NO2 +6HO, How many moles of ammonia would be required to produce 11.9 mol of water? Can you please walk me through the steps on how to figure this problem?

1. chemistry

Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2

2. chemistry

4NH3 + 5O2 = 4NO + 6H2. The gas-phase reaction between ammonia and oxygen occurs only at high temperature. It is referred to as “burning” ammonia, even though no carbon is present. The reaction is carried out in a sealed flask

3. Chem

How many grams of N2 are produced when 125g of NH3 reacts by the following? 4NH3+6NO--->5N2 +6H20 I know the answer but I do not know how to do the problem. The answer in the book is 257g But what do I do? I am not even sure where

4. Science

If a mineral sample has a mass of 10 g, how many grams of oxygen does it contain? You need more information than that to determine the amount of oxygen or any other element in the mineral. Your question is the same kind as, "My