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16 January, 18:44

35.0 mL of 12.0 M HCl is added to enough water to have a final volume of 1.20 L. What is the molarity of the final solution?

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  1. 16 January, 20:51
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    0.35 M

    Explanation:

    We are given;

    Initial volume as 35.0 mL or 0.035 L Initial molarity as 12.0 M Final volume is 1.20 L

    We are required to determine the final molarity of the solution;

    Dilution involves adding solvent to a solution to make it more dilute which reduces the concentration and increases the solvent while maintaining solute constant. Using dilution formula we can determine the final molarity.

    M1V1 = M2V2

    Rearranging the formula;

    M2 = M1V1 : V2

    = (12.0 M * 0.035 L) : 1.2 L

    = 0.35 M

    Thus, the final concentration of the solution is 0.35 M
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