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A solution has a concentration of 0.2 M. How many moles of solute are present in

Practice Questions

Q1
A solution has a concentration of 0.2 M. How many moles of solute are present in 1.5 L of this solution?
  1. 0.3 moles
  2. 0.5 moles
  3. 0.2 moles
  4. 0.15 moles

Questions & Step-by-Step Solutions

A solution has a concentration of 0.2 M. How many moles of solute are present in 1.5 L of this solution?
  • Step 1: Understand that molarity (M) is the number of moles of solute per liter of solution.
  • Step 2: Identify the given values: Molarity = 0.2 M and Volume = 1.5 L.
  • Step 3: Use the formula to find moles of solute: Moles of solute = Molarity × Volume.
  • Step 4: Substitute the values into the formula: Moles of solute = 0.2 M × 1.5 L.
  • Step 5: Calculate the result: 0.2 × 1.5 = 0.3 moles.
  • Molarity – Molarity is a measure of the concentration of a solute in a solution, expressed in moles of solute per liter of solution.
  • Volume – Volume refers to the amount of space that a substance (in this case, the solution) occupies, measured in liters.
  • Moles – Moles are a unit of measurement used in chemistry to express the amount of a substance, based on the number of atoms or molecules.
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