Chem question help quick!?
Chem question help quick!?
A 98 mL stock solution of a food colour having a molecular weight (molar mass) of 264.4 g mol-1 was made.
1 mL of this stock solution was then diluted to 50 mL.
The absorbance of the diluted solution at 456 nm wavelength was 0.216 using a 1 cm cuvette. It is known that this compound has a molar absorptivity (extinction coefficient) of 409.7 mol-1 L cm-1 at this wavelength.
What was the mass of the food colour dissolved in the stock solution in mg?
No Answers Posted Yet.