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What is the molarity of a solution prepared by dissolving 5 moles of NaCl in 2 l

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Question: What is the molarity of a solution prepared by dissolving 5 moles of NaCl in 2 liters of water?

Options:

  1. 2.5 M
  2. 5 M
  3. 10 M
  4. 1 M

Correct Answer: 2.5 M

Solution: 

Molarity (M) = moles of solute / liters of solution = 5 moles / 2 L = 2.5 M.

What is the molarity of a solution prepared by dissolving 5 moles of NaCl in 2 l

Practice Questions

Q1
What is the molarity of a solution prepared by dissolving 5 moles of NaCl in 2 liters of water?
  1. 2.5 M
  2. 5 M
  3. 10 M
  4. 1 M

Questions & Step-by-Step Solutions

What is the molarity of a solution prepared by dissolving 5 moles of NaCl in 2 liters of water?
  • Step 1: Identify the number of moles of the solute (NaCl). In this case, it is 5 moles.
  • Step 2: Identify the volume of the solution in liters. Here, it is 2 liters.
  • Step 3: Use the formula for molarity, which is Molarity (M) = moles of solute / liters of solution.
  • Step 4: Plug in the values: M = 5 moles / 2 liters.
  • Step 5: Calculate the result: 5 divided by 2 equals 2.5.
  • Step 6: State the final answer: The molarity of the solution is 2.5 M.
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