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    Determine how many moles are used.

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    In the laboratory you are instructed to add 2 drops of 0.15 M AlCl3 to 2 drops of 0.15 M NaOH. If twenty drops makes one milliliter, determine how many moles of AlCl3 are used. How many moles of NaOH are used?

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    Solution Preview

    If you have 2 drops and 20 drops is a mL...

    2 drops(1 mL/20 drops) = 0.10 mL = 0.00010 L

    If you have 0.15 M AlCl3, then...

    moles of AlCl3 = (0.00010 L)(0.15 mol/L) = ...

    Solution Summary

    The expert determines how many moles are used.The solution includes calculations and explanation in 130 words.

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