Question

what is the molar mass of this compound? nh₃ remember to round to the hundredths place from the periodic table. 17.03 g/mol 43.03 g/mol 45.05 g/mol 15.02 g/mol

Explanation:

Step1: Find molar mass of N

Nitrogen (N) has a molar mass of $14.01\ \text{g/mol}$ (from periodic table).

Step2: Find molar mass of H

Hydrogen (H) has a molar mass of $1.01\ \text{g/mol}$, and there are 3 H atoms in $\ce{NH3}$. So total for H: $3\times1.01 = 3.03\ \text{g/mol}$.

Step3: Sum molar masses

Add molar mass of N and total molar mass of H: $14.01 + 3.03 = 17.04$ (close to 17.03 due to rounding precision).

Answer:

17.03 g/mol