Periodic Table Question 10 of 12 sapling leaming Map Calculate the concentration

Question

Periodic Table Question 10 of 12 sapling leaming Map Calculate the concentration of IO The Kep of Pb(Os)2 is 2.5 x10. Assume that Pb(IOsh2 is a negligible source of Pb2 compared to Pb(NOa2 Number 10 5.89: 10 M lo;-II 5.89 × 10-6 | M A different solution contains dissolved NalOs. What is the concentration of NalOs if adding excess Pb(IO3)2(s) produces [Pb2+1-5.90 × 106 M? Incorrect. Create an equilibrium table for the dissolution of Pb(IO3)2 in a solution of NalO3. Let the concentration of NalO3 in solution be y, so that the initial concentration of 103 is y Number Nalo,] = Pb(103)2(s) Pb2"(aq) + Pb a) +210 aq 210,(aq) Initial (M) Change +2x Equilibrium y+ 2x The equilibrium constant expression is You know that x = 5.90 x 106 M. Substitute in the expressions from the equilibrium table into the equation on the left and solve for y 2 Pb2 03 Yo libro m tat le ir 5.90 x 10u M. Sun he left the expressions from the sp= Next Exit O Previous Give Up & View Solution # Try Again

Explanation / Answer

according to the table given.

Ksp = (x)(2x+y)2

2.5 x 10-13 = (5.9 x 10-6)(2x5.9x10-6 + y)

y = 2.36 x 10-5 M

This is the concentration of NIO3

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