How many moles of solute are present in 2 litres of 0.05 molar solution?
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Answer and explanation
Correct answer: 0.10 mole
Molarity is the number of moles of solute per litre of solution. Rearranging M = n/V gives n = M × V. Using M = 0.05 mol L−1 and V = 2 L, n = 0.05 × 2 = 0.10 mol. Thus, option A is correct. Option B forgets the volume, while options C and D result from incorrect operations or units.
Frequently asked questions
What is the correct answer to this question?
0.10 mole
Why is this the correct answer?
Molarity is the number of moles of solute per litre of solution. Rearranging M = n/V gives n = M × V. Using M = 0.05 mol L−1 and V = 2 L, n = 0.05 × 2 = 0.10 mol. Thus, option A is correct. Option B forgets the volume, while options C and D result from incorrect operations or units.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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