Question

Which of the following substances will affect the solubility of 2PbF2 in aqueous solution? Select all that apply.

a) 2Pb(NO3)2
​b) NaF
c) Ca(NO_3)_2
d) H_2SO4
e) KOH

Answer 1

The substances that will affect the solubility of 2PbF2 in aqueous solution are 2Pb(NO3)2, NaF, and H2SO4.

Step-by-step explanation:

The substances that will affect the solubility of 2PbF2 in aqueous solution are:

• 2Pb(NO3)2: When mixed with 2PbF2, it will increase the concentration of the Pb2+ ions, which can enhance the solubility of 2PbF2.
• NaF: When mixed with 2PbF2, it will increase the concentration of F- ions, which will compete with the 2PbF2 and decrease its solubility.
• H2SO4: This strong acid can react with 2PbF2 to produce PbSO4, which is insoluble.