Suppose that a 10-mL sample of a solution is to be tested for I− ion by...

Question

Question

Suppose that a 10-mL sample of a solution is to be tested for I− ion by addition of 1 drop (0.2 mL) of 0.12 M Pb(NO3)2.

What is the minimum number of grams of I−I− that must be present in order for PbI2(s)PbI2(s) (Ksp=8.49×10−9Ksp=8.49×10−9) to form?

Express your answer using one significant figure.

Answer 1

Answer #1

Pb2+7 -0-2x 108 x 0.12 Pb(NO3)2 = Pbt2 +2 No 3 0.2 mL of 0-12 M Pb(NO3)₂ smoles of Pb (NO3)2 = (0.2 x 103 x 0.12) As it io ad

Answer 2

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