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If 4 moles of solute are dissolved in 2 kg of solvent, what is the molality of t

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Question: If 4 moles of solute are dissolved in 2 kg of solvent, what is the molality of the solution?

Options:

  1. 2 m
  2. 4 m
  3. 1 m
  4. 0.5 m

Correct Answer: 2 m

Solution: 

Molality (m) = moles of solute / kg of solvent = 4 moles / 2 kg = 2 m.

If 4 moles of solute are dissolved in 2 kg of solvent, what is the molality of t

Practice Questions

Q1
If 4 moles of solute are dissolved in 2 kg of solvent, what is the molality of the solution?
  1. 2 m
  2. 4 m
  3. 1 m
  4. 0.5 m

Questions & Step-by-Step Solutions

If 4 moles of solute are dissolved in 2 kg of solvent, what is the molality of the solution?
Correct Answer: 2 m
  • Step 1: Identify the number of moles of solute. In this case, it is 4 moles.
  • Step 2: Identify the mass of the solvent in kilograms. Here, it is 2 kg.
  • Step 3: Use the formula for molality, which is molality (m) = moles of solute / kg of solvent.
  • Step 4: Plug in the values into the formula: m = 4 moles / 2 kg.
  • Step 5: Calculate the result: 4 divided by 2 equals 2.
  • Step 6: State the final answer: The molality of the solution is 2 m.
  • Molality – Molality is a measure of the concentration of a solute in a solution, defined as the number of moles of solute per kilogram of solvent.
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