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30 December, 03:30

Calculate the Molarity of 89.94 g NaCl is dissolved in 1249 mL of solution.

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  1. 30 December, 04:03
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    Molarity = 1.23 M

    Explanation:

    Given dа ta:

    Molarity of NaCl = ?

    Mass of NaCl = 89.94 g

    Volume of solution = 1249 mL (1249/1000 = 1.249 L)

    Solution:

    First of all we will calculate the number of moles of NaCl.

    Number of moles = mass/molar mass

    Number of moles = 89.84 g / 58.5 g/mol

    Number of moles = 1.54 mol

    Molarity:

    Molarity = Number of moles of solute / volume of solution in L

    Molarity = 1.54 mol / 1.249 L

    Molarity = 1.23 M
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