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Q.

How many grams of MgC2O4 (formula weight = 112) will dissolve in 1.5 L of water ? (Ksp = 8.1×10-5) 

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a

1.512

b

4.65

c

1.29

d

1.0

answer is C.

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Detailed Solution

s2 = 8.1 ×10-3

s=9×10-3

9×10-3=w112×11.5

w=1.512 gm

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