How many grams of vitamin B12 are present in a 200.0 mL blood serum sample with...

Question

Question

How many grams of vitamin B₁₂ are present in a 200.0 mL blood serum sample with a vitamin B₁₂ concentration of 187 ng/L?

science chemistry

Answer 1

Answer #1

it xbe the mass ot BI in 90ol 900ml= 0.2L tn- 10-9 187 X1 lontains ILitres Contains O-21 CYo S$ multiply X=187 10x 0-2 3-74X1

Answer 2

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