Study the information in the table below and answer the questions that follow.

Study the information in the table below and answer the questions that follow.

A mixture containing 35g of CuSO₄ and 78 g of Pb(NO₃)₂ in 100 g of water at 60^o was cooled to 40^oC
a) What salt crystallized out? Give a reason.
b) Calculate the mass of salt that crystallised out.

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a) Copper (II) sulphate. This is because its solubility at 40^oC is 28g and the amount dissolved is higher than this

b) 35 - 28 = 7 g

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johnmulu answered the question on April 21, 2017 at 13:52

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