Calculating the Effect of a Common Ion on Solubility Consider a saturated soluti

Question

Calculating the Effect of a Common Ion on Solubility

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?

Consider a saturated solution of the salt , which  is a metal cation with a  charge and  is an anion with a  charge, in water at 298 . Which of the following will affect the  of  in water?

diluting the solution the addition of more X to the solution raising the temperature of the solution the addition of more M3+ to the solution more than one of the above factors

Explanation / Answer

MX3 --> M+3 and 3X-

Ksp = [M+3][X-]^3

diluting solution ---> since concnetration are affected

adding X- decrease M+3 solubility

raising T changes Ksp value, tehrefore solubiltiy

addition of M3+ affects solubiliyt of X-

all factors affect

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