# In the equation: 4NH3 + 5O2 → 4NO + 6H2O , 310 g of O2 will react with 175 g of NH3. What is the limiting reactant? What is the theoretical yield of NO, and if 197 g of NO are produced, what is the percent yield?

##### 1 Answer

Theoretical yield = 202g; Percentage yield = 98%

#### Explanation:

Using the equation:

Number of Moles = Mass / Mr

Number of Moles

Number of Moles

From the balanced equation, we can see that

7.75 moles of

Mass = Moles x Mr

202g is the theoretical yield of

To calculate the percentage yield, you just divide the actual yield by the theoretical yield and multiply by 100: