Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: floater47 on March 15, 2022, 11:22:33 PM
-
How should I make my own solution?
My target/ideal volume of the solvent is 500mL. And maybe 7 grams of CuSO4 5H2O.
What should the solution's concentration be?
What are the things/info that I need to be mindful of?
-
To calculate mass concentration you need to divide mass of the compound by mass of the solution (compound + solvent)
To calculate molar concentration - quantity of compound by volume of the solution.
-
Just a FYI
from WIKI search on copper sulfate pentahydrate
Copper(II) sulfate
https://en.wikipedia.org/wiki/Copper(II)_sulfate
IUPAC name
Copper(II) sulfate
Other names
Cupric sulphate
Blue vitriol (pentahydrate)
Bluestone (pentahydrate)
Bonattite (trihydrate mineral)
Boothite (heptahydrate mineral)
Chalcanthite (pentahydrate mineral)
Chalcocyanite (mineral) Copper Sulphate pentahydrate
Identifiers
CAS Number
7758-98-7 (anhydrous) check
7758-99-8 (pentahydrate) check
16448-28-5 (trihydrate) ☒
19086-18-1 (heptahydrate) ☒
Chemical formula
CuSO4 (anhydrous)
CuSO4·5H2O (pentahydrate)
Molar mass
159.60 g/mol (anhydrous)[1]
249.685 g/mol (pentahydrate)[1]
Appearance
gray-white (anhydrous)
blue (pentahydrate)
Density
3.60 g/cm3 (anhydrous)[1]
2.286 g/cm3 (pentahydrate)[1]
Melting point
110 °C (230 °F; 383 K) decomposes
560 °C decomposes[1](pentahydrate (·5H2O))
Fully decomposes at 590 °C (anhydrous)
Boiling point
decomposes to cupric oxide at 650 °C
Solubility in water
1.055 molal (10 °C)
1.26 molal (20 °C)
1.502 molal (30 °C)[2]
Solubility
anhydrous
insoluble in ethanol[1]
pentahydrate
soluble in methanol[1]
10.4 g/L (18 °C)
insoluble in ethanol
insoluble in acetone