What is the final concentration, in mg/mL, for a solution prepared by adding 12.00 mL of a 3.590 mg/mL Cu2 + stock solution into 100.00 mL volumetric flask and filled with water to the calibration mark?

0.4308 mg/mL

Explanation:

Given data

Initial concentration (C₁) : 3.590 mg/mL Initial volume (V₁) : 12.00 mL Final concentration (C₂) : ? Final volume (V₂) : 100.00 mL

We can find the final concentration using the dilution rule.

C₁ * V₁ = C₂ * V₂

C₂ = C₁ * V₁ / V₂

C₂ = 3.590 mg/mL * 12.00 mL / 100.00 mL

C₂ = 0.4308 mg/mL