A sample of `NaNO_(3)` weighting 0.38 g is placed in a 250 mL volumetric flask. The flask is then filled with water to the mark on the neck. What is the molarity of the solution?

Explanation

To find the molarity of the NaNO₃ solution, we can follow these steps:

### Step 1: Calculate the number of moles of NaNO₃
The number of moles can be calculated using the formula:
\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
Given:
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