Molality of 20% (w/w) aq. glucose solution is

Explanation

To calculate the molality of a 20% (w/w) aqueous glucose solution, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Given Information**:
- A 20% (w/w) glucose solution means that there are 20 grams of glucose in 100 grams of the solution.

2. **Determine the Mass of Solvent**:
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