Nitroglycerin (C3H5N3O9) is a powerful explosive. Its decomposition may be represented by

This reaction generates a large amount of heat and many gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion.
(a) What is the maximum amount of O2 in grams that can be obtained from 2.00 × 102 g of nitroglycerin?
(b) Calculate the percent yield in this reaction if the amount of O2 generated is found to be 6.55 g.

4C,H,N;O, 6N, + 2CO, + 10H,0 + 0,