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Molarity

Quiz by Becky Helmer

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12 questions
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  • Q1
    20.0 moles of NaOH is dissolved in 1.45 L of solution. What is the molarity?
    12.95M
    13.8 M
    14M
    13M
    120s
  • Q2

    You need to make 100.mL of 0.50M HCl. You have 12M HCl. How much 12M HCl do you need?

    What are they asking you to find?

    molarity
    volume
    120s
  • Q3
    What is the molarity of a 1.50L solution with 23.4 moles of NaCl dissolved in it?
    15.6M
    15 mol
    15.6 mol
    15 M
    120s
  • Q4
    You have 10.M NaCl. You need to make 200. mL of 1.25 M NaCl. How many mL of NaCl do you use?
    50mL
    25L
    25mL
    50L
    120s
  • Q5

    What is the molarity of 75 moles of NaOH dissolved in 2 L of solution?

    1.0 M
    37.5M
    1.25 M
    60 M
    120s
  • Q6

    How do you convert mL to L?

    move the decimal 2 places to the left

    move the decimal 3 places to the left

    move the decimal 3 places to the right

    move the decimal 2 places to the right

    30s
  • Q7

    If 125 mL of a 0.15M NaOH solution is diluted to a final volume of 150 mL, what will be the molarity of the diluted solution?

    What are they asking you to find?

    molarity

    volume

    30s
  • Q8

    If 125 mL of a 0.15M NaOH solution is diluted to a final volume of 150 mL, what will be the molarity of the diluted solution?

    1.0 m

    0.5 M

    0.18 M

    0.125 M

    30s
  • Q9

    According to M1V1=M2V2, how are molarity and volume related?

    directly

    indirectly

    30s
  • Q10

    If volume increases, what will happen to molarity?

    It will increase.

    It will decrease.

    It will stay the same.

    30s
  • Q11

    If volume decreases, what will happen to molarity?

    It will increase.

    It will decrease.

    It will stay the same.

    30s
  • Q12

    How much of a 15.0 M stock solution do you need to prepare 250 ml of a 2.35 M HF solution?

    39.2 mL

    0.141 mL

    1595 mL

    30s

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