15g of salt is present in 75g of solution. Calculate the mass percentage of the solution.

Explanation

To calculate the mass percentage of salt in the solution, we can follow these steps:

### Step 1: Identify the mass of solute and mass of solution
- The mass of the solute (salt) is given as 15 grams.
- The mass of the solution is given as 75 grams.

### Step 2: Use the formula for mass percentage
The formula for mass percentage is:

\[ \text{Mass Percentage} = \left( \frac{\text{Mass of Solute}}{\text{Mass of Solution}} \right) \times 100 \]

### Step 3: Substitute the values into the formula
Substituting the values we have:

\[ \text{Mass Percentage} = \left( \frac{15 \, \text{g}}{75 \, \text{g}} \right) \times 100 \]

### Step 4: Simplify the fraction
Now, simplify the fraction:

\[ \frac{15}{75} = \frac{1}{5} \]

### Step 5: Calculate the mass percentage
Now, multiply by 100 to find the mass percentage:

\[ \text{Mass Percentage} = \left( \frac{1}{5} \right) \times 100 = 20\% \]

### Final Answer
The mass percentage of the solution is **20%**.

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