Determine the volume of Fe(NO3)3 stock solution needed to prepare a dilute solution, then decide what volume of dilute solution should be prepared.

Volume stock solution: 0.25 mL.

Volume of resulting diluted solution: 50 mL.

Concentration of the diluted solution: 0.001 M.

Explanation:

Hello!

In this case, according to the given scheme, we need to consider that 10-mL pipets are not able to measure out more than 10 mL, it means that we need to take 0.25 mL from the stock solution in order to prepare the diluted solution.

Next, since the given volumetric flask at the right side, probably has a volume of 50 mL, rather than 0.5 mL, we infer that 50 mL of the diluted solution should be prepared.

Finally, considering that the concentration and volume of the stock solutions are respectively 0.2 M and 0.25 mL and the volume of the diluted solution is 50 mL, we can compute the concentration of the diluted solution as follows

Best regards!

the answer is c

tell me if wrong

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