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25 July, 03:51

Lithium hydroxide is used in alkaline batteries. Calculate the molarity of a solution prepared by dissolving 1.495 moles of LiOH in enough water to give a final volume of 750. mL.

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  1. 25 July, 06:28
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    [LiOH] = 1.99M

    Explanation:

    We can apply this rule of three to determine the molarity of LiOH

    Molarity are the moles of solute (in this case, LiOH) that are contained in 1L of solution. Our solution's volume is 750 mL

    We convert the volume to L → 750 mL. 1L / 1000mL = 0.750L

    Therefore we propose:

    In 0.750L we have 1.495 moles of LiOH

    In 1L we may have (1. 1.495) / 0.750 = 1.99 moles

    Molarity → mol/L
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