A student begins with a 2.00 M stock solution of CuSO and performs the following…
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Problem
A student begins with a 2.00 M stock solution of CuSO4 and performs the following two-step dilution:
Step 1: Transfer 10.0 mL of the stock solution into a volumetric flask and add water to reach 250.0 mL total volume.
Step 2: Remove 5.00 mL of the solution from Step 1 and dilute it to 100.0 mL.
What is the final concentration of CuSO4 after Step 2?
(a) 0.00160M
(b) 0.00400M
(c) 0.0800M
(d) 8.00×10−4M