Calculate the formula unit masses of ZnO, `Na_(2)O, K_(2)CO_(3)`, given atomic masses of Zn = 65 u, Na = 23 u, K = 39 u, C = 12 u, and O = 16 u.

Explanation

To calculate the formula unit masses of ZnO, Na₂O, and K₂CO₃, we will follow these steps:

### Step 1: Calculate the formula unit mass of ZnO
1. Identify the atomic masses:
- Atomic mass of Zn = 65 u
- Atomic mass of O = 16 u

2. Add the atomic masses together:
...