Consider an Aqueous Solution Which Is 0

question 19

Multiple Choice

Consider an aqueous solution which is 0.020 M in Pb²⁺ and 0.20 M in Ag⁺.If concentrated aqueous potassium iodide solution (so that volume changes may be neglected) is added gradually with good stirring to this solution,which precipitate will form first?
K_sp for PbI₂ = 7.1 × 10^-9;for AgI = 8.31 × 10^-17

• A)PbI₂
• B)KI
• C)AgI
• D)PbI₂ and AgI precipitate together
• E)Ag₂[PbI₄]

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Definitions:

Dermis

The thick layer of living tissue below the epidermis that forms the true skin, containing sweat glands, hair follicles, and connective tissue.

Stratum Basale

The deepest layer of the epidermis, consisting of basal cells that continuously divide and produce new skin cells.

Melanocytes

Cells located in the bottom layer of the skin's epidermis that produce melanin, the pigment responsible for skin color.

Cuboidal Cells

Epithelial cells with a cube-like shape, often found lining glands and ducts.