Homework Help: Chemistry

Posted by Ken on Friday, December 2, 2011 at 2:59am.

If performing a potentiometric halide titration with Ag+:

1. Is siver nitrate a primary standard? Explain.

2. What is the purpose of using a bisulfate buffer?

3. Have 1.0000 grams of unknown, containing .3000g KCl and .7000g KI. You dissolve in 100 mL of water then use an aliquot of 25mL for titration. How many milliliters of 0.700 M AgNO3 would you expect the mixture to consume?

Chemistry - DrBob222, Friday, December 2, 2011 at 10:17am
1. I don't know the details of your experiment but I suspect AgNO3 is, indeed, a primary standard. How you explain that is up to you.
2. Too basic and you have problems with Ag(OH)2.
3. moles KCl = grams/molar mass
moles KI = grams/molar mass
Total Cl and I = sum of the two.
Amount titrated is sum x (25/100) = ?
moles AgNO3 used = moles in the 25 mL aliquot.
M AgNO3 = moles AgNO3/L AgNO3. Solve for L and convert to mL.

Answer this Question

Related Questions

anaytical chemistry - experiment: potentiomeric titration 1. Why is continuos ...
chemistry - 1. Explain the effects of the following factors on the relative ...
chem - 1. Explain the effects of the following factors on the relative ...
chem - 1. Explain the effects of the following factors on the relative ...
chem - 1. Explain the effects of the following factors on the relative ...
Chemistry - Could someone answer this question so I understand it. Thanks In ...
moore boring chemistry! :( - Why do groups I, II, & III easily form halide ...
chemistry - Let me try! Let me try! :) nickel(II)nitrate and zinc nitrate --&...
Chemistry - Could someone answer this. Im stuck on it. In general, the most ...
Chemistry - Could someone answer this question. Im stuck on this one. Thanks In ...

For Further Reading

First Name:
School Subject:
Answer: