Answer to Question #293789 in Physical Chemistry for Roman

Question

S   +   6 HNO₃ →  H₂SO₄  +  6 NO₂  +   2 H₂O

In the above equation, how many grams of water can be made when 12.6 moles 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.:

Answer 1

The molar mass of H₂O is 18.0 g/mol.

$m(H_2O)=12.6\ mol(HNO_3)\times\frac{2\ mol(H_2O)}{6\ mol(HNO_3)}\times\frac{18.0\ g(H_2O)}{1\ mol(H_2O)}=75.6\ g$

Answer: 75.6 g