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1 September, 10:42

Find the molarity of a solution containing 12 grams of LiOH in 500 milliliters of solution.

Select one:

a. 2 M

b. 0.04 M

c. 1 M

d. 0.5 M

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Answers (1)
  1. 1 September, 11:05
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    Option C. 1M

    Explanation:

    From the question given, we obtained the following dа ta:

    Mass of LiOH = 12g

    Volume = 500mL = 500/1000 = 0.5L

    Molarity = ?

    To solve for the molarity, we need to find the number of mole of LiOH.

    This can be achieved by:

    Molar Mass of LiOH = 7 + 16 + 1 = 24g/mol

    Number of mole = Mass / Molar Mass

    Number of mole of LiOH = 12/24 = 0.5mol.

    Now we can find the molarity as follows:

    Molarity = mole / Volume (L)

    Molarity = 0.5/0.5 = 1M
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