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

Question

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

Round your answer to the nearest tenth. If your 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

Sulfur 32

Oxygen 16

Answer 1

Based on stoichiometry HNO3 to H2O is 6:2

Use 9 grams to find the moles of HNO3

9 grams/63g/mol=0.143 moles of HNO3

HNO3:H2O

6:2

0.143*2/6=0.048

H2O moles is 0.048moles

Mass of water =0.048moles*18g/mol=0.864g

To the nearest tenth=0.9grams