Question

The graph shows the solubility curves of copper sulphate, potassium nitrate,
and sodium chloride.
120
5 100
80
Solubility (g per 100g of water)
60
40
potassium nitrate
copper/sulphate
20
sodium chloride
0 10 20 30 40 50 60 70 80 90 100
Temperature °C
1. Which substance dissolves best at
a. 0°C
b. 60°C
what is the solubility of copper sulphates at 50°C​

Answer 1

60 °C

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