The molar mass of ammonia (NH ) is 17.03 g/mol. Which expression correctly shows how to determine the number of moles of

Question

ammonia equivalent to 5 g?

Answer 1

To determine the number of moles of ammonia (NH₃) equivalent to 5 grams, you can use the formula:

\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]

In this case, the molar mass of ammonia is 17.03 g/mol. Therefore, the expression to calculate the number of moles of ammonia equivalent to 5 g would be:

\[ \text{Number of moles of NH}_3 = \frac{5 , \text{g}}{17.03 , \text{g/mol}} \]

This expression gives you the number of moles of ammonia contained in 5 grams.