Consider a saturated solution of the salt MX3, which M is a metal cation with a

Question

Consider a saturated solution of the salt MX3, which M is a metal cation with a 3+ charge and X is an anion with a 1? charge, in water at 298 K. Which of the following will affect the Ksp of MX3 in water?

A. more than one of the above factors

B. diluting the solution

C. raising the temperature of the solution

D. the addition of more M3+ to the solution

E. the addition of more X? to the solution

Why is pH at the equivalence point larger than 7 when you titrate a weak acid with a strong base?

The conjugate base that is formed at the equivalence point is a strong base There is excess weak acid at the equivalence point. The conjugate base that is formed at the equivalence point reacts with water. This statement is false: the pH is always 7 at an equivalence point in a pH titration. There is excess strong base at the equivalence point.

Explanation / Answer

C. raising the temperature of the solution

D. the addition of more M3+ to the solution

E. the addition of more X to the solution

These three factors willl affect the Ksp of MX3.

The conjugate base that is formed at the equivalence point reacts with water.

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