What will be the molality of the solution made by dissolving 10 g of NaOH in 100g of water ?

Options

A. 2.5 m
B. 5 m
C. 10 m
D. 1.25 m

Explanation

To find the molality of the solution made by dissolving 10 g of NaOH in 100 g of water, we can follow these steps:

### Step 1: Calculate the number of moles of NaOH
To find the number of moles, we use the formula:
\[ \text{Number of moles} = \frac{\text{mass of solute (g)}}{\text{molar mass of solute (g/mol)}} \]
The molar mass of NaOH (Sodium Hydroxide) can be calculated as follows:
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