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Solution Concentration Quiz
12 Questions
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Solution Concentration Quiz

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@FunWendigo

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Questions and Answers

How many moles is 18g of water?

  • 5 moles
  • 1 mole (correct)
  • 2 moles
  • 0.5 moles

    • How many moles is glucose if the mass is 360 grams and the molar mass is 180g/mol?

  • 1 mole
  • 2 moles (correct)
  • 4 moles
  • 0.5 moles

    • What is the proof of Tanduay if it has 40% alcohol?

  • 20% proof
  • 60% proof
  • 40% proof
  • 80% proof (correct)

    • How much NaCl should a chemist dissolve in water to make a 1L 2 molar solution?

    <p>116.88 grams</p> Signup and view all the answers

    What is the mole fraction of solute in a solution where moles of solute are 3 and total moles of solute and solvent are 10?

    <p>$\frac{3}{10}$</p> Signup and view all the answers

    Which of the following is true about molecular weight?

    <p>It varies depending on the substance.</p> Signup and view all the answers

    What does molarity represent?

    <p>Number of moles of the solute dissolved in one liter of the solution</p> Signup and view all the answers

    What is molality?

    <p>Number of moles of solute dissolved in one kilogram of the solvent Liquid</p> Signup and view all the answers

    What does proof represent in a solution?

    <p>Two times the percentage by volume of the alcohol in the solution</p> Signup and view all the answers

    What is the unit used for parts per million (ppm)?

    <p>The number of units of mass of a contaminant per million units of total mass</p> Signup and view all the answers

    What does mass concentration represent?

    <p>$\frac{\text{mass of solute}}{\text{mass of solution}}$</p> Signup and view all the answers

    What is the formula for mole fraction?

    <p>$\frac{\text{moles of substance}}{\text{total moles present}}$</p> Signup and view all the answers

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