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1 November, 23:15

A chemist prepares a solution of silver (I) nitrate (AgNO3) by measuring out 269. micromol of silver (I) nitrate into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's silver (I) nitrate solution. Be sure your answer has the correct number of significant digits.

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  1. 1 November, 23:35
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    The concentration of the chemist's silver (I) nitrate solution is 0.897 mmol/L

    Explanation:

    Step 1: Data given

    Number of moles AgNO3 = 269 micromol = 269 * 10^-6 mol

    Volume of AgNO3 = 300 mL = 0.3 L

    Molar mass of AgNO3 = 169.87 g/mol

    Step 2: Calculate molarity of AgNO3

    Molarity = number of moles per volume (in Liters)

    Molarity AgNO3 = 269 * 10^-6 mol / 0.3 L

    Molarity AgNO3 = 8.97 * 10^-4 M

    8.97 * 10^-4 mol/L = 897 micromol/L = 0.897 mmol/L

    The concentration of the chemist's silver (I) nitrate solution is 0.897 mmol/L
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