If both moles of solute and total volume of solution are made three times, what happens to molarity?
Answer and explanation
Correct answer: It remains same
Molarity is defined as moles of solute divided by volume of solution in litres: M = n/V. After the change, it becomes 3n/3V, which simplifies to n/V, the original value. Therefore, multiplying both the numerator and denominator by the same factor does not change the ratio. Options A and D ignore the simultaneous volume increase, while B reverses the effect.
Frequently asked questions
What is the correct answer to this question?
It remains same
Why is this the correct answer?
Molarity is defined as moles of solute divided by volume of solution in litres: M = n/V. After the change, it becomes 3n/3V, which simplifies to n/V, the original value. Therefore, multiplying both the numerator and denominator by the same factor does not change the ratio. Options A and D ignore the simultaneous volume increase, while B reverses the effect.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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