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28 December, 18:17

50.0 grams of KCl is dissolved in water to make a 4.00 L

solution. What is the molarity of the solution? (Molar mass of

KCI = 74.5 g/mol) _ M (Round your answer to the

appropriate number of four significant figures)

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Answers (1)
  1. 28 December, 18:45
    0
    Molarity = 0.1678 M

    Explanation:

    Given dа ta:

    Volume = 4.00 L

    Mass of KCl = 50.0 g

    Molarity = ?

    Solution:

    Formula:

    Molarity = number of moles / volume in L

    Number of moles = mass / Molar mass

    Number of moles = 50.0 g / 74.5 g/mol

    Number of moles = 0.8 mol

    Molarity = 0.8 mol / 4.00 L

    Molarity = 0.1678 M
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