i need 1,2,3

the second picture is just for background. i have the answer for it.

please answer it!

especially 2,3 i think i have the answer for the first one!

i will upvote if all 3 are answered

For this lab the following calculations should be done in notebook before lab: 1. the preparation of the 0.100M copper sulfate stock solution. 2. the dilution for each of the calibration standards 3. the preparation of the 1000ppm copper sulfate solution. 1. Using solid CuSO45H2O make a "stock" solution of 0.100MCuSO4 in 50mL. Show all calculations in your laboratory notebook and then use the proper solution techniques as demonstrated by your instructor