Question

Lead(II) sulfate is precipitated from a mixture of water solutions of potassium sulfate and lead(II) nitrate. Write the word equation and balanced chemical equation for this double replacement reaction.

Answer 1

Lead(II) sulfate precipitates from a double replacement reaction between potassium sulfate and lead(II) nitrate, formulated as: Pb(NO3)2(aq) + K2SO4(aq) → PbSO4(s) + 2 KNO3(aq).

Step-by-step explanation:

The precipitation of Lead(II) sulfate from a mixture of potassium sulfate and lead(II) nitrate involves a double replacement reaction. The word equation for this reaction is:

Potassium sulfate (aqueous) + Lead(II) nitrate (aqueous) → Lead(II) sulfate (solid) + Potassium nitrate (aqueous)

The balanced chemical equation for this reaction is:

Pb(NO3)2(aq) + K2SO4(aq) → PbSO4(s) + 2 KNO3(aq)

This reaction involves an exchange of anions between the reactants to form a new insoluble compound, Lead(II) sulfate, which precipitates out of solution, and an aqueous compound, Potassium nitrate.

Answer 2

One molecule of potassium sulfate plus one molecule of lead (II) nitrate gives one molecule of lead (II) sulfate and two molecules of potassium nitrate.

K2S + Pb(NO3)2 ===> PbS + 2 KNO3