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What is the molality of a solution containing 3 moles of KCl dissolved in 1 kg o

Practice Questions

Q1
What is the molality of a solution containing 3 moles of KCl dissolved in 1 kg of water?
  1. 3 m
  2. 1.5 m
  3. 2 m
  4. 4 m

Questions & Step-by-Step Solutions

What is the molality of a solution containing 3 moles of KCl dissolved in 1 kg of water?
  • Step 1: Identify the number of moles of the solute (KCl). In this case, it is 3 moles.
  • Step 2: Identify the mass of the solvent (water) in kilograms. Here, it is 1 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 = 3 moles / 1 kg.
  • Step 5: Calculate the result: 3 moles divided by 1 kg equals 3.
  • Step 6: State the final answer: The molality of the solution is 3 m.
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