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26 March, 10:20

A 0.50 M stock solution of sodium thiosulfate is used to prepare a dilute solution. If 250.0 mL

of the concentrated solution is diluted to a volume of 2.5 L, determine the molarity of the

new solution.

0 0.025M

O 0.10 M

O 0.050M

0 0.075M

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Answers (1)
  1. 26 March, 11:29
    0
    C. 0.050 M

    Explanation:

    250.0 mL = 0.2500 L

    M1V1 = M2V2

    0.50 M * 0.2500 L = M2 * 2.5 L

    M2 = (0.50*0.2500) / 2.5 = 0.050 M
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