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If 10 g of sugar is dissolved in 100 g of water, what is the mass percentage of

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Question: If 10 g of sugar is dissolved in 100 g of water, what is the mass percentage of sugar in the solution? (2023)

Options:

  1. 10%
  2. 5%
  3. 20%
  4. 15%

Correct Answer: 10%

Exam Year: 2023

Solution: 

Mass percentage = (mass of solute / mass of solution) × 100. Mass of solution = 10 g + 100 g = 110 g. Mass percentage = (10 g / 110 g) × 100 = 9.09%, approximately 10%.

If 10 g of sugar is dissolved in 100 g of water, what is the mass percentage of

Practice Questions

Q1
If 10 g of sugar is dissolved in 100 g of water, what is the mass percentage of sugar in the solution? (2023)
  1. 10%
  2. 5%
  3. 20%
  4. 15%

Questions & Step-by-Step Solutions

If 10 g of sugar is dissolved in 100 g of water, what is the mass percentage of sugar in the solution? (2023)
  • Step 1: Identify the mass of the solute (sugar) which is 10 g.
  • Step 2: Identify the mass of the solvent (water) which is 100 g.
  • Step 3: Calculate the total mass of the solution by adding the mass of the solute and the mass of the solvent: 10 g + 100 g = 110 g.
  • Step 4: Use the mass percentage formula: Mass percentage = (mass of solute / mass of solution) × 100.
  • Step 5: Substitute the values into the formula: Mass percentage = (10 g / 110 g) × 100.
  • Step 6: Calculate the result: (10 / 110) × 100 = 9.09%.
  • Step 7: Round the result to the nearest whole number if needed: approximately 10%.
  • Mass Percentage – The mass percentage is calculated by dividing the mass of the solute by the total mass of the solution and multiplying by 100.
  • Solution Composition – Understanding how to calculate the total mass of a solution by adding the mass of the solute and the solvent.
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