Multiple Choice
How many grams of vitamin B12 are present in a 100.0 mL blood serum sample with a vitamin B12 concentration of 148 ng/L?
A) 1.48 x 10-9 g
B) 1.48 x 10-8 g
C) 1.48 x 10-5 g
D) 1.48 g
Correct Answer:

Verified
Correct Answer:
Verified
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