ðŸ¤“ Based on our data, we think this question is relevant for Professor Pitigalaarachchige's class at FAMU.

We are asked to find the number of molecules of nitrogen monoxide (NO) that are in a 22.5-gram sample.

1. Compute for the number of moles NO:

To find the number of molecules of nitrogen monoxide (NO) that are in a 22.5-gram sample, recall the formula for Molar mass;

$\overline{){\mathbf{Molar}}{\mathbf{}}{\mathbf{mass}}{\mathbf{}}{\mathbf{NO}}{\mathbf{}}{\mathbf{=}}\frac{\mathbf{}\mathbf{mass}\mathbf{}\mathbf{of}\mathbf{}\mathbf{NO}}{\mathbf{moles}\mathbf{}\mathbf{NO}}\mathbf{}}$

How many molecules of nitrogen monoxide are in a 22.5 gram sample?