Anonymous
Anonymous asked in Science & MathematicsChemistry · 6 months ago

chemistry problem?

What is the concentration (molarity) of potassium chloride in a solution that is prepared by adding 22 gallons of 0.48 M KCl solution to enough water to make a total of 56 gallons of solution?

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  • 6 months ago
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    (22 gallons) x (0.48 M KCl) / (56 gallons) = 0.18857 = 0.19 M KCl

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  • (0.48 * 22 + 0 * 34) / (22 + 34) =>

    0.48 * 22 / 56 =>

    0.48 * 11 / 28 =>

    48 * 11 / (28 * 100) =>

    12 * 11 / (7 * 100) =>

    132 / (7 * 100) =>

    1.32 / 7 =>

    (1.26 + 0.06) / 7 =>

    0.18 + 0.06/7 =>

    0.18 + 0.056/7 + 0.004/7 =>

    0.18 + 0.008 + 0.004/7 =>

    0.188 + 0.004/7 =>

    0.19 M

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