Calculate the molality of a solution containing 5.3 g of anhydrous `Na_(2)CO_(3)` in 400 g of water,

Explanation

To calculate the molality of a solution containing 5.3 g of anhydrous Na₂CO₃ in 400 g of water, we can follow these steps:

### Step 1: Calculate the molar mass of Na₂CO₃
The molar mass of Na₂CO₃ (sodium carbonate) can be calculated as follows:
- Sodium (Na): 22.99 g/mol (2 Na atoms)
- Carbon (C): 12.01 g/mol (1 C atom)
- Oxygen (O): 16.00 g/mol (3 O atoms)

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