@aaronq conversion from concentration to micrograms/mL

Question

aaronq · Answer

concentration in what units?

anonymous · Answer

molarity

aaronq · Answer

$\sf Molarity=\dfrac{moles}{L}=\dfrac{mass}{Molar~mass*L}$


so, $\sf\dfrac{mass}{L}=Molarity*Molar~mass$

then it's just a conversion between grams to micrograms

$\sf 1\mu g=1*10^{-6}g$

anonymous · Answer

@aaronq whats molar mass of iron

aaronq · Answer

55.85 g/mol

you can always just google these

anonymous · Answer

my concentration is 1.002816901 so times it by 55.85

aaronq · Answer

yep

anonymous · Answer

then divided it by 1*10^-6

aaronq · Answer

yes, then convert /L to /mL

anonymous · Answer

@aaronq i got 56007, the concentration should be below 1

anonymous · Answer

@aaronq  move decimal place 6 places left

aaronq · Answer

oh wait you're supposed to multiply not divide

anonymous · Answer

@aaronq whats ur email address. But, it should be below 1

aaronq · Answer

$\dfrac{g}{L}*\dfrac{1*10^{-6}\mu g}{g}*\dfrac{L}{1000~mL}$