10 g of glucose is dissolved in 150 g of water. The mass percentage of glucose is :

Options

A. `2.50%`
B. `6.25%`
C. `8.75%`
D. `10%`

Answer

To find the mass percentage of glucose in the solution, we can follow these steps:

### Step 1: Determine the mass of the solute and the solvent
- Mass of glucose (solute) = 10 g
- Mass of water (solvent) = 150 g

### Step 2: Calculate the total mass of the solution
- Total mass of the solution = mass of glucose + mass of water
- Total mass = 10 g + 150 g = 160 g

### Step 3: Calculate the mass percentage of glucose
- The formula for mass percentage is:
\[ \text{Mass percentage} = \left( \frac{\text{mass of solute}}{\text{total mass of solution}} \right) \times 100 \]
- Substituting the values:
\[ \text{Mass percentage of glucose} = \left( \frac{10 \, \text{g}}{160 \, \text{g}} \right) \times 100 \]

### Step 4: Perform the calculation
- Calculate the fraction:
\[ \frac{10}{160} = \frac{1}{16} \]
- Now multiply by 100:
\[ \text{Mass percentage of glucose} = \left( \frac{1}{16} \right) \times 100 = 6.25\% \]

### Final Answer:
The mass percentage of glucose is **6.25%**.

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