Question

You are provided with a 0.6 M (mol/L) solution of riboflavin.
Molar mass: riboflavin (C17H20N4O6) = 376.369 g/mol.
What volume (in mL) will contain 750 μmoles of riboflavin?

Answer 1

$\dfrac{750 μmol}{10^{6}}=0.00075mol$

$V=\dfrac{0.00075mol*1000mL}{0.6mol/1000mL}=1.25mL$

Answer: 1.25mL contain 750 μmoles of riboflavin.