The molarity of the copper solution in the cuvet below was determined by spectrophotometric analysis to be 2.90 102 M Cu. Using the diagram below to help visualize the dilution process, calculate the grams of copper in the Jefferson nickel used to make the initial solution.

Hi,

First solve the equation Mi*Vi=Mf*Vf from the info given. You can plug in everything except for the molarity of volume 1. Mi= Vi=5.00mL Mf=0.0029M Vf=100mL. Solving for Mi will get you 0.580M Cu.

Using the concentration and Volume of solution 1, 0.1L you can find the number of moles of copper in the solution= 0.0580 moles Cu.

Lastly,Convert moles to grams which gives you 3.69g Cu.

This post is last updated on hrtanswers.com at Date : 1st of September – 2022