[cottonexpo900]

Hi guys,

Can I please have some help in regards to setting up the following practicals:

a). Separate CuSO4 (copper sulfate) from water
b). Electrolysis of Cu (copper) from Copper sulfate

Also can I please have some help in suggestions for writing up the scientific method on one of these. For the separation in a) I guess evaporation will be the technique used.

Thank you all

[Burner]

For the separation in a) I guess evaporation will be the technique used.

You are not wrong, but to speed things up we usually use distillation. However, if you want pure, large CuSO₄ crystals, crystallization is more preferrable.

b). Electrolysis of Cu (copper) from Copper sulfate

What do you want help with this question? If you want the procedure or experimental set-up of it, just look them up on Google.

[Borek]

For the separation in a) I guess evaporation will be the technique used.

You are not wrong, but to speed things up we usually use distillation.

Huh? Distillation makes sense when you are interested in recovering the boiling substance, not when you just want to get rid of a cheap and safe solvent.

[orthoformate]

Are you a teacher trying to set up practicals for your students? Or are you a student trying to answer questions from a teacher?

[cottonexpo900]

Thanks for replies guys. I need help with how to set up (equipment/items) correctly of both pracs up in the lab and suggestions for writing up the scientific method on one of them.

E.g. For Practical A The aim would be gravimetric analysis with required additional equipment (weight scale, calculator etc.). A lit bunsen burner below a tripod with a gauze mat with a beaker on top with H20 + CuSO4 solution may be the set up?

[Burner]

A lit bunsen burner below a tripod with a gauze mat with a beaker on top with H20 + CuSO4 solution may be the set up?

I think using evaporating dish instead of beaker would be safer.

By the way, just curious, are the copper sulfate used in practical B comes from the one separated in practical A?

[cottonexpo900]

Not at all

[cottonexpo900]

A lit bunsen burner below a tripod with a gauze mat with a beaker on top with H20 + CuSO4 solution may be the set up?

I think using evaporating dish instead of beaker would be safer.

By the way, just curious, are the copper sulfate used in practical B comes from the one separated in practical A?

Not at all