Chemical Forums

Chemistry Forums for Students => High School Chemistry Forum => Topic started by: elli on November 24, 2021, 12:09:59 PM

Title: Stock solution for copper
Post by: elli on November 24, 2021, 12:09:59 PM

How many grams of copper sulfate pentahydrate is required to have a 50 mg/L concentration of copper?

Title: Re: Stock solution for copper
Post by: sjb on November 24, 2021, 12:41:00 PM

This will depend on how much stock solution you need. Any formulas you know that might help?

Title: Re: Stock solution for copper
Post by: billnotgatez on November 24, 2021, 01:02:05 PM

Some data from WIKI that might aid in the discussion

Copper(II) sulfate
Chemical formula
CuSO4 (anhydrous)
CuSO4·5H2O (pentahydrate)
Molar mass
159.60 g/mol (anhydrous)
249.685 g/mol (pentahydrate)

Copper
Standard atomic weight
63.546
Atomic number 
29

Sulfurl
Standard atomic weight conventional
32.06
Atomic number
16

Oxygen
Standard atomic weight conventional
15.999
Atomic number
8