The solubility in moles per dm³ of 20g of CuSO₄ dissolve in 100 of water at 180°C is?

(Cu = 63.5, S = 32, O = 16)

Big_ify

3 years ago

solubilty =number of moles/volume
cuso4=(63.5+32+16*4)= 159.5
convert 100g to dm³= 100/1000 = 0.1dm³(volume)
number of moles = mass/molar mass
=20/159.5 = 0.125
recall solubilty's formular
from s=n/v
0.125/0.1
= 1.25 mole

Dave333

4 years ago

What's going on here 🧐

Dave333

4 years ago

🤔Or...are we given 0.125 as the mol/dm3

Doclord

3 years ago

m/M*1000

ifechukwuSC

3 years ago

it is strange