A student plans to add HCL to a solution containing pb(NO3)2 (aq). To determine how much Pb2+ will precipitate from solution whe

Question

3 years ago

6

A student plans to add HCL to a solution containing pb(NO3)2 (aq). To determine how much Pb2+ will precipitate from solution whe

n the HCL is added, the student needs to know which of the following?A) Ka for HCLB) Ka for HNO3C) Ksp for PbCl2D) Keq for the reaction Pb2+ + 2e- <---> Pb

Chemistry

1 answer:

WINSTONCH [101] · Answer 1 · 2022-05-02T18:57:32+03:00

Answer:

Option C. Ksp for PbCl₂

Explanation:

The equilibrium constant that is established between a solid and its ions in a saturated solution is what is known as Ksp (solubility product). It is an equilibrium constant based on concentrations.

The concentrations must be equilibrium, that is, concentrations of the ions in a saturated solution. To be sure of such saturation it is convenient to form a precipitate.

The smaller the Kps, the more insoluble the salt