# Chapter 10 Gases and Their Properties - Study Questions - Page 403b: 15

See the answer below.

#### Work Step by Step

Since T and P are the same $V\propto n$, from stoichiometry: a) $150\ mL×1/2=75\ mL$ of $O_2$ required. b) $150\ mL×2/2=150\ mL$ of $NO_3$ formed.

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