40 mL methanol is used to make 250 mL solution. What is the volume percentage of methanol?
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Answer and explanation
Correct answer: 16 percent
When the final solution volume is given, volume percent is volume of solute divided by final solution volume, multiplied by 100. Thus methanol volume percent = (40 mL/250 mL) × 100 = 16%. The denominator is not the amount of solvent added; it is the total final solution volume. Therefore option C is correct.
Frequently asked questions
What is the correct answer to this question?
16 percent
Why is this the correct answer?
When the final solution volume is given, volume percent is volume of solute divided by final solution volume, multiplied by 100. Thus methanol volume percent = (40 mL/250 mL) × 100 = 16%. The denominator is not the amount of solvent added; it is the total final solution volume. Therefore option C is correct.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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