Use the following balanced equation for problems 1–5. Molar masses are given below.
2 As + 3 H2 → 2 AsH3 + 150. kcal
molar masses 74.92 g 2.02 g 77.95 g
How much energy is released when 22.00 g of H2 are consumed ?
A. 3.30 x 103 kcal
B. 1.10 x 103 kcal
C. 1.10 x 103 kcal
D. 545 kcal
E. 150. kcal
