[yanks3455]

1.
In the preparation of a rock salt solution, 1.369 grams of impure rock salt was dissolved in 50.0 ml of distilled water. The total mass of the solution was found to be 46.396 grams. Calculate the weight percent of impure rock salt in the prepared solution.
 2.951


The result of a micro-scale Mohr titration showed that 3.80x10-4 moles of AgNO3 were required to titrate a 0.914 gram sample of rock salt solution to an orange-red end point.
Calculate the number of grams of chloride in the sample.
0.0131

3.
Calculate the weight percent of chloride in this titrated sample.
 1.432

4.
Using the information provided in the questions above, calculate the weight percent of chloride in the original impure rock salt solution prepared in question 1.

I managed to get the first 3 questions right, the questions are pretty much all related. But for some reason I can't get the fourth right. I tried basically doing what i did in question 3 but for some reason I'm not coming up with the right answer? Any ideas as to what i should do?

[Borek]

1.369 grams of impure rock salt was dissolved in 50.0 ml of distilled water. The total mass of the solution was found to be 46.396 grams.

Are you sure about these numbers? You have 50 g of distilled water, you add 1.369g of rock salt and the final solution mass is 46.396? It doesn't make sense.

I managed to get the first 3 questions right, the questions are pretty much all related. But for some reason I can't get the fourth right. I tried basically doing what i did in question 3 but for some reason I'm not coming up with the right answer? Any ideas as to what i should do?

What result are you refering to - answer given in a book? As there seems to be error in the first statement, final result must be dubious.