How would the molar solubility of barium sulfate be impacted if it were to be di
ID: 1061879 • Letter: H
Question
How would the molar solubility of barium sulfate be impacted if it were to be dissolved in 0.010 M CaSO4 (with no other change in conditions)?A. It would increase B. It would stay the same C. It would decrease D. There is not enough information to provide an answer How would the molar solubility of barium sulfate be impacted if it were to be dissolved in 0.010 M CaSO4 (with no other change in conditions)?
A. It would increase B. It would stay the same C. It would decrease D. There is not enough information to provide an answer
A. It would increase B. It would stay the same C. It would decrease D. There is not enough information to provide an answer
Explanation / Answer
ksP FOR BaSO4= [Ba+2] [SO4-2] =
let x= [Ba+2]
then x2=1.1*10-10, x= 1.0488*10-5 M/L
[SO4-]2 = 1.0488*10-5
when 0,01m CasO4 is dissolved
CaSO4-----> Ca+2 +SO4-2
KSp =2.4*10-5
y2= 2.4*10-5, where y= [Ca+2] =[SO4-]2
y= 0.004899M
[SO4-2] =0.004899
BaSO4 Ba+2 SO4-2
initial 0 0.004899
change x x
equilibrium x 0.004899+x
KSp = x*(x+0.004899)= 1.1*10-10, where x= solubility of BaSO4
when solved using excel,. x = 2.2*10- 8 M. The solubility will decrease ( C is correct)