One way to make a set of solutions of regularly decreasing concentrations is to

Question

One way to make a set of solutions of regularly decreasing concentrations is to make serial dilutions of the most concentrated one. a. starting with a 1.000 M solution, calculate the concentration of the solution prepared by taking 25.00 mL of the stock solution and diluting it properly with water in a 100 mL volumetric flask. b. if you repeat this process 6 times, each time using 25.00 mL of the new dilute solution to make 100.00 mL of a more diluted solution, what will be the concentration of your final solution.

Explanation / Answer

a) molarity = 1.000 M / (100/25) = 0.250 M b) final molarity = 0.250 M / [6 x (100/25)] = 0.250 / (6 x 4) = 0.01042 M

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