Calculate the molar mass of ammonia.

Explanation

To calculate the molar mass of ammonia (NH₃), follow these steps:

### Step 1: Identify the formula of ammonia
The chemical formula for ammonia is NH₃. This indicates that each molecule of ammonia contains one nitrogen atom and three hydrogen atoms.

### Step 2: Find the atomic masses of nitrogen and hydrogen
- The atomic mass of nitrogen (N) is approximately 14 grams per mole.
- The atomic mass of hydrogen (H) is approximately 1 gram per mole.

### Step 3: Calculate the total mass contributed by nitrogen
Since there is one nitrogen atom in ammonia:
- Mass from nitrogen = 1 atom × 14 g/mol = 14 g/mol

### Step 4: Calculate the total mass contributed by hydrogen
Since there are three hydrogen atoms in ammonia:
- Mass from hydrogen = 3 atoms × 1 g/mol = 3 g/mol

### Step 5: Add the masses together
Now, add the mass from nitrogen and the mass from hydrogen to get the total molar mass of ammonia:
- Total molar mass of NH₃ = Mass from nitrogen + Mass from hydrogen
- Total molar mass of NH₃ = 14 g/mol + 3 g/mol = 17 g/mol

### Conclusion
The molar mass of ammonia (NH₃) is 17 grams per mole.

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