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Percentage volume and mass composition in a solution

Quiz by Ujah Joseph

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10 questions
Show answers
  • Q1
    If you dissolve 20 grams of salt in 80 grams of water, what is the percent by mass of salt in the solution?
    10%
    5%
    20%
    25%
    30s
  • Q2
    Samantha prepares a solution by dissolving 50 grams of sugar in 150 grams of water. What is the percentage volume of sugar in the solution?
    33%
    50%
    25%
    10%
    30s
  • Q3
    A scientist mixes 40 mL of alcohol with 160 mL of water to make a solution. What is the percentage by volume of alcohol in the solution?
    20%
    25%
    15%
    30%
    30s
  • Q4
    In a laboratory experiment, a student dissolves 25 grams of sodium chloride (table salt) into 475 grams of water. What is the percentage by mass of sodium chloride in the solution?
    5%
    20%
    10%
    2.5%
    30s
  • Q5
    A chemist mixes 10 grams of hydrogen peroxide with 90 grams of water. What is the percentage by mass of hydrogen peroxide in the mixture?
    1%
    10%
    50%
    25%
    30s
  • Q6
    If a solution is made by dissolving 15 grams of sugar in 135 grams of water, what is the percentage by mass of sugar in the solution?
    11%
    10%
    20%
    5%
    30s
  • Q7
    A student dissolves 5 grams of salt into 195 grams of water. What is the percent by mass of water in the solution?
    50%
    97.5%
    2.5%
    75%
    30s
  • Q8
    Jenny prepares a solution by mixing 20 grams of alcohol with 180 grams of water. What is the percentage by mass of alcohol in this solution?
    15%
    5%
    20%
    10%
    30s
  • Q9
    A solution is made by dissolving 30 grams of glucose in 270 grams of water. What is the percentage by mass of glucose in the solution?
    11%
    5%
    10%
    25%
    30s
  • Q10
    What is the percentage by volume of vinegar in a solution if 25 mL of vinegar is mixed with 75 mL of water?
    33%
    75%
    25%
    50%
    30s

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