Homework Help: Chemistry

Posted by Josh on Saturday, November 20, 2010 at 10:44am.

Suppose that a 10-mL sample of a solution is to be tested for Cl- ion by addition of 1 drop (0.2mL ) of 0.15 M AgNO3 .

What is the minimum number of grams of Cl- that must be present in order for AgCl(s) to form?

Chemistry - DrBob222, Saturday, November 20, 2010 at 1:23pm
AgCl ==> Ag^+ + Cl^-

Ksp = (Ag^+)(Cl^-)
You know 0.2 mL x 0.15 M AgNO3 will be moles of M x L. That divided by 10 mL (convert to L) will be the concn of Ag^+. Solve for (Cl^-) which will be in moles/L, convert that to moles/10 mL and convert moles Cl^- to grams Cl^-.
Chemistry - Bob, Tuesday, March 6, 2012 at 2:52pm
1e-7

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