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20 December, 15:52

What is the molarity of 200 mL of solution in which 2.0

molesof sodium bromide is dissolved?

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Answers (1)
  1. 20 December, 16:11
    0
    10 M

    Explanation:

    Molarity -

    Molarity of a substance, is the number of moles present in a liter of solution.

    M = n / V

    M = molarity

    V = volume of solution in liter,

    n = moles of solute,

    From the question,

    V = 200mL

    Since, 1L = 1000mL,

    1 mL = 0.001 L

    Hence,

    V = 200mL = 0.2 L

    n = 2.0 mol

    Hence, to calculate the molarity of the solution, the above formula can be used as -

    M = n / V

    M = 2.0 mol / 0.2 L = 10 M
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