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2 December, 11:10

How many milliliters of a 4.0 m nacl solution will be needed to make 500 ml of a 2.0 m nacl solution?

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  1. 2 December, 11:39
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    The number of moles = volume * molarity.

    Volume = 500/1000 of Nacl solution.

    Volume = 0.5 of Nacl

    Hence number of moles = 0.5 * 2 = 1.

    To calculate how many milliliters of a 4.0 m nacl solution.

    We have number of moles = volume * molarity.

    Hence volume = number of moles / molarity

    Volume = 1 / 4 = 0.25L = 2500mL
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