Question

Compounds of lead have been used throughout the ages before anyone realized lead’s toxicity.

(a) Flake white was a white pigment used by Renaissance artists, which was composed of a combination of lead(II) carbonate and lead(II) hydroxide. What are the correct chemical formulas for these two compounds?

PbHCO3

Pb(OH)4

Pb(OH)2

PbCO3

PbO

Pb2CO3

(b) Lead(II) oxide has been added to glass to make crystal that glistens beautifully. When wine is stored in a crystal decanter, the lead slowly leaches out making lead(II) acetate, which is also known as the sugar of lead. It gives the wine a very sweet flavor but is unfortunately also very toxic. Write the correct chemical formulas for these two compounds.

PbO

Pb(C2H3O2)2

PbC2O3

PbC2H3O2

Pb(OH)2

PbCO3

Answer 1

a ) Lead (II) carbonate

Here Pb have + 2 charge . Carbonate have - 2 charge. So the chemical formula is PbCO_3.

Lead (II) hydroxide

Here Pb have + 2 charge . Hydroxide have - 1 charge. So the chemical formula is Pb(OH) ₂

b )

Lead (II) oxide

Here Pb have + 2 charge . Oxide have - 2 charge. So the chemical formula is PbO.

Lead (II) acetate

Here Pb have + 2 charge . Acetate have - 1 charge. So the chemical formula is Pb( C₂H₃O₂)₂