Multiple Choice
A researcher needs 800 mL of a 25 mM phosphate buffer.The stock solution of the buffer is 100 mM.How much stock solution should be used to make the 25 mM phosphate buffer?
A) 31 mL
B) 310 mL
C) 200 mL
D) 2.0 mL
E) 0.2 mL
Correct Answer:

Verified
Correct Answer:
Verified
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