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20 November, 23:25

Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150 g/mol. What is the final concentration of NaI solution?

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  1. 21 November, 00:07
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    Answer: 0.4M

    Explanation: C1V1 = C2V2

    C1 = 0.2M

    V1 = 2L

    C2=?

    V2 = 1

    C1V1 = C2V

    0.2 x 2 = C2 x 1

    C2 = 0.4M
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