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chemistry

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Describe how a 250.0 mL aqueous solution of 1.50 M MgCl2 is prepared from a stock solution of 6.00 M MgCl2.

ANSWER: Measure 62.5 mL of the stock solution into a container and dilute to 250.0 mL

so what i need explained is where did 62.5 mL come from?

  • chemistry -

    M1V1=M2V2
    where M1=1.50 M, V1=250.0 mL, and M2=6.00M

  • chemistry -

    just divide the 250mL by 4 to get 62.5, that cuts the molarity by 4 as well

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