
Molarity and Molality
Authored by Ms. Punyang
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12th Grade

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10 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
How does one express concentration in molarity and molality?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Express the concentration of solutions in molality and molarity.
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Why is it better to use molality in laboratory experiments than molarity?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Calculate the molarity of a 2 L solution prepared by dissolving 15 moles of glucose in enough water.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Calculate the molality of a solution prepared by dissolving 8 moles of rock salt in 20 kg of water.
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Calculate the amount of sodium phosphate (Na3PO4), in moles, to be added to 30 kg water to form a 2.5 molal solution of aqueous Na3PO4.
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Calculate the amount of potassium acetate (KCH3COO), in moles, to be added to enough water to produce 0.250 L of a 1.5 molar solution of aqueous KCH3COO.
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