The reported molar absorptivity of Red Dye #3 is 2.038 L mol-1 cm-1. If a solution of Red Dye #3 displays an absorbance of 1.657 in a cuvette that is 0.701 cm in length, what is the concentration of the dye in solution? Report your response to three digits after the decimal. M

Concentration of the dye in solution is 1.159 M

Explanation:

According to Beer-Lambert law, the absorbance is directly proportional to the concentration of an absorbing species.

Formula used :

where,

A = absorbance of solution = 1.657

C = concentration of solution = ?

l = length of the cell = 0.701 cm

= molar absorptivity of this solution =

Thus the concentration of the dye in solution is 1.159 M

i just learnt this recently but i need to look through my notes again

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.