3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O

Question

In the above equation how many moles of water can be made when 144.1 grams of HNO₃ are consumed?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:

Element	Molar Mass
Hydrogen	1
Nitrogen	14
Copper	63.5
Oxygen	16

Answer 1

The stoichiometry is (144.1g HNO₃) * (1 mol HNO₃ /63.0g HNO₃) * (4 mol H₂O /8 mol HNO₃) = 1.1 mole H₂O.