Compare the concentration of hydroxide ions from exercises 17 and 18. Without do

Question

Compare the concentration of hydroxide ions from exercises 17 and 18. Without doing any calculations, how is it possible to predict which compound will yield a greater concentration of hydroxide ions?

1 aqueous solution compound A compound with the chemical formula of X,Y is very sieghtly solubie in an Ksp of 1.8 x 1o"". Caletate the motar solubility of the It has 18. A sample of solid PbClz is mixed into pure water. As a result, 1.4x 10 M P ions are produced. What is the Ksp value of the compound?

Explanation / Answer

The compound with greater molar solubility in water will yield a greater concentration of hydroxide ions.

17 - molar solubility = 1.42 x 10-4 M

18 - molar solubility = 1.4 x 10-5 M

Then, 1.42 x 10-4 M > 1.4 x 10-5 M

Therefore,

compound in 17 will yield a greater concentration of hydroxide ions.

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