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17 July, 20:57

A water sample contains the pollutant chlorobenzene with a concentration of 15 ppb. What is the molarity of this solution? Assume the density of the solution is 1.00 g/mL. The molar mass of chlorobenzene is 112.6 g/mol.

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  1. 17 July, 21:22
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    The molarity is 1.33*10^-7M

    Explanation:

    15ppb = 15g of chlorobenzene/10^9g of solution * 1 mole of chlorobenzene/112.6g * 1g of solution/mL = 1.33*10^-10mol/mL * 1000mL/1L = 1.33*10^-7mol/L
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