A normal value for blood cholesterol is 200 mg/dL of blood. if a normal adult has a total blood volume of 5L , how much total cholesterol is present

Question

aaronq · Answer

the density ($\rho$) formula is:   $\rho=\dfrac{m}{V}$

m=mass, V= volume

just plug in your values and solve 

NOTE: they need to be in the same units, so you need to convert 5L to dL

anonymous · Answer

How would I even plug that in? what do I use for "p" or is that what I'm figuring out? Cause if so then the answer should be 4 but it says it's wrong!

aaronq · Answer

"rho" $\rho$ is the symbol for density.

did you convert the volume from L to dL?

anonymous · Answer

5L = 50 DL
I understand, but what would be the density in this case? 
Plugging 50dL as "P" and as "V" gave me 4, which I guess is wrong..

aaronq · Answer

50 dL is the volume 
200 mg/dL  is the density

aaronq · Answer

$\rho*V=m\rightarrow200 mg/dL *50 dL=10000 mg =10 g $

anonymous · Answer

Thank you so much!!!!! (: I've been stuck on that for like half an hour..

aaronq · Answer

no problem ! hope you understood how the formula works

anonymous · Answer

Yes, I redid it just so I can get it in my head! Once again, thank you!!(:

aaronq · Answer

awesome ! you are welcome