Density of KBr is `2.75 g//cm^3` . The edge length of unit cell is 654pm. Find the type of unit cell of KBr (At.mass of K=39 and Br=80)

Explanation

To determine the type of unit cell of KBr based on the given density and edge length, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values:**
- Density (ρ) of KBr = 2.75 g/cm³
- Edge length (A) = 654 pm = 654 × 10⁻¹² m
- Atomic mass of K (M₁) = 39 g/mol
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