# Problem: Which salt precipitates first and what is the minimum concentration of Ag + necessary to cause this precipitation in a solution containing 7.5 mL of 0.025 M NaCl and 7.5 mL of 0.025 M Na3PO4?   (Hint: dilution occurs) Ksp(AgCl) = 1.8 x 10-10 Ksp(Na3PO4) = 1.3 x 10-20 a) AgCl              8.7 x 10  -7 M b) Ag3PO4         2.3 x 10  -7 M c) AgCl              1.4 x 10  -8 M d) Ag3PO4         7.2 x 10  -8 M e) None of these answers are correct

84% (22 ratings)
###### Problem Details

Which salt precipitates first and what is the minimum concentration of Ag + necessary to cause this precipitation in a solution containing 7.5 mL of 0.025 M NaCl and 7.5 mL of 0.025 M Na3PO4?

(Hint: dilution occurs)

Ksp(AgCl) = 1.8 x 10-10

Ksp(Na3PO4) = 1.3 x 10-20

a) AgCl              8.7 x 10  -7 M

b) Ag3PO4         2.3 x 10  -7 M

c) AgCl              1.4 x 10  -8 M

d) Ag3PO4         7.2 x 10  -8 M

e) None of these answers are correct

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ksp concept. You can view video lessons to learn Ksp. Or if you need more Ksp practice, you can also practice Ksp practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofWhich salt precipitates first and what is the minimum concen...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Ellen took 9 minutes and 33 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.