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Question

S   + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O

In the above equation how many grams of water can be made when 9 grams of HNO3 are consumed?

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
Sulfur	32
Oxygen	16

Answer 1

1. Find the molecular mass of HNO3 using the table (call this x)
2. Find the number of moles of HNO3 (9/x), call this y
3. From the equation 6 moles of HNO3 gives 2 moles of H20. So y moles of HNO3 gives (y/3) moles of water
4. Multiply (y/3) by molecular mass of H2O (find from table)