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17 September, 19:08

What is the molarity of a solution that contains 125 g nacl in 4.00 l solution? (molar mass of nacl = 58.44 g/mol)

a. 0.535 m

b. 2.14 m

c. 8.56 m

d. 31.3 m?

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Answers (1)
  1. 17 September, 20:30
    0
    Number of moles solute:

    n = m / mm

    n = 125 / 58.44

    n = 2.138 moles of NaCl

    Molarity = moles of solute / volume (L)

    M = 2.138 / 4.00

    M = 0.535 M

    Answer A
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