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7 June, 00:28

A 6.00 % (m/v) NaCl solution contains 37.5 g of NaCl. What is the total volume (V) of the solution in milliliters?

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  1. 7 June, 02:12
    0
    Total volume is 625 mL

    Explanation:

    We use the 6 % (m/v) data which is a sort of concentration. This percent means that the solution has 6 g of solute in 100 mL of solution

    So we make a rule of three:

    6 g of solute (NaCl) are in 100 mL of solution

    Therefore, 37.5 g are in (37.5.100) / 6 = 625 mL
  2. 7 June, 04:09
    0
    We make a 6.00 % (m/v) NaCl solution by dissolving 37.5 grams NaCl in 625mL.

    Explanation:

    Step 1: Data given

    Mass / volume % of a NaCl solution = 6.00 % (m/V)

    Mass of NaCl in this solution = 37.5 grams

    Step 2: Calculate the volume

    Since 1.00 % (m/V) = 1.00 gram NaCl / 100 mL

    A 6.00 % (m/V) = 6.00 grams NaCl / 100 mL

    But since the total mass NaCl = 37.5 grams, this means to have the same mass % (6.00 %) we have to increase the volume

    37.5 / 6 = 6.25

    We have to multiply the total volume of 100 mL by 6.25

    100 mL * 6.25 = 625 mL

    We make a 6.00 % (m/v) NaCl solution by dissolving 37.5 grams NaCl in 625mL.
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