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Medical experts generally consider a lea...

Medical experts generally consider a lead of `30 mu g Pb` per `(dL)` of blood to pose a significant health risk `(Pb = 208)`. Number of lead atoms per `cm^3` of blood is.

A

`8.64 xx 10^10`

B

`8.86 xx 10^16`

C

`8.67 xx 10^12`

D

`8.68 xx 10^14`

Text Solution

Verified by Experts

The correct Answer is:
D
(d) `1 dL = (1)/(10) L = 0.1 L = 100 cm^3`
`100 cm^3` of blood has `= 30 mg Pb = 30 xx 10^-6 g Pb`
=`(3 xx 10^-6)/(208) mol Pb = (30 xx 10^-6 xx N_0)/(208)`
atoms `Pb = 8.6827 xx 10^16 "atoms" Pb`
`1 cm^3` f blood has `= 8.627 xx 10^(+14) "atoms" Pb`.
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