A 20.0 mL sample of a Cu2+ solution was diluted to 250.0 mL. A portion of this solution was found to — Laboratory Chemistry Chemistry Question
Question
A 20.0 mL sample of a Cu2+ solution was diluted to 250.0 mL. A portion of this solution was found to have an absorbance of 0.15 under the same conditions that were used to generate the given absorbance vs. [Cu2+] graph. What was the concentration of Cu2+ ions in the original sample?
A.
0.0060 M
B.
0.075 M
C.
0.30 M
D.✓ Correct
0.94 M
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