Question

The solution of NaCl is prepared with the following concentrations. What is the volume percentage (V/V) of NaCl?

• A. 0.6% W/V NaCl
• B. 1.2% W/V NaCl
• C. 0.9% W/V NaCl
• D. 0.8% W/V NaCl

Hint:

To calculate W/V percentage, divide the weight of solute by the volume of the solution and multiply by 100.

Answer 1

The Correct Option is B

Step 1: Understanding the Calculation.
The weight/volume percentage is calculated using the formula: \[ \text{W/V} % = \frac{\text{Weight of solute (g)}}{\text{Volume of solution (mL)}} \times 100 \]
Step 2: Calculation.
- The concentration is 1.2% W/V NaCl, so for every 100 mL of solution, we have 1.2 grams of NaCl. - Therefore, the correct answer is (B) 1.2% W/V NaCl.