eshkfabyjanech eshkfabyjanech
  • 16-01-2017
  • Physics
contestada

What is the iodide ion concentration in a solution if the addition of an excess of 0.100 m pb(no3)2 to 42.9 ml of the solution produces 861.8 mg of pbi2?

Respuesta :

andriansp andriansp
  • 23-01-2017
Moles Pbl2 =  0.8628 g  :  461.01 g/mol   = 0.001871

moles I = 2 x  0.001871 = 0.003742

[I-] = 0.003742/ 0.0429

= 0.0872 M
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