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12 September, 20:52

If 3.2 moles of NaCl are dissolved in enough water to make a 0.98-liter solution, what is the molarity of the solution?

0.31 M NaCl

0.77 M NaCl

1.3 M NaCl

3.3 M NaCl

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Answers (2)
  1. 12 September, 20:56
    0
    Number of moles = 3.2 moles

    Volume = 0.98 L

    Therefore:

    M = n / V

    M = 3.2 / 0.98 = > 3.3 M

    Answer D
  2. 12 September, 21:03
    0
    Molarity of solution = moles / volume (in liters)

    = 3.2 / 0.98

    = 3.3 M NaCl

    The answer is 3.3 M NaCl
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