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13 Dec 2019

First, he standardized the AgNO₃ titrant with 0.1242 g dry NaCl dissolved in 25.0 ml DI water, and 26.25 ml of titrant was consumed. Then he used the standardized titrant to determine the concentration of chloride in the solution. 11.71 ml of AgNO₃ solution was used to titrate 25.00 ml of solution

a) Calculate the concentration (M) of AgNO₃ titrant.

b) Determine the content of chloride in the unknown solution (M).

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Keith LeannonLv2

17 Dec 2019

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1. Calculate the concentration of the AgNO3 solution.

2. Use your AgNO3 concentration to determine the concentration of the KSCN titrant from your standardization titrations. (See Equation 6-1)

3. Determine the amount of excess Ag+ remaining in the filtrate of your unknown solutions:

a. Equation 6-1 shows the stoichiometry for this reaction.

Ag+ + SCN- --> AgSCN

b. Use the volume of KSCN used, along with the true concentration of KSCN you determined, to find the moles of Ag+ remaining in solution after the reaction with chloride.

c. Use the concentration of AgNO3 to determine the total moles of silver you added to the reaction.

d. The difference between the values you determined in b and c equals the total number of moles of silver that reacted with the chloride in your aliquot of unknown solution.

e. Determine and report the mass% of chloride in your unknown sample.

Okay so I have my concentration of AgNO3 buthow do I use it to find the concentration of the KSCN titrant? Also How to determine the excess amount of Ag+ remaining in the filtrate of my unknown silutions?

cyancattle838

A student standardizes his NaOH titrant solution with KHP. Heperforms three titrations - in each trial, the mass of KHP (204.22g/mol) used is 1.500 g. The average amount of NaOH used in thestandardization is 29.3 mL +/- 0.06 mL. In week 2 of the titrationexperiment, the student performs three titrations of 10.00 mL ofVinegar (d=1.005 g/mL) to determine the mass % Acetic Acid (60.05g/mol), using his standardized NaOH as the titrant. The amount ofNaOH used in the three trials are: 32.80 mL, 32.77 mL, and 32.84mL. What is the concentration of the NaOH solution?

A) 0.251 M
B) 10.45 M
C) 0.0512 M
D) 0.2507 M
E) 0.735 M

blushleopard139

As a food chemist for a major potato chip company, you are responsible for determining the salt content of new potato chip products for the packaging label. The potato chips are seasoned with table salt, NaCl. You weigh out a handful of the chips, boil them in water to extract the salt, and then filter the boiled chips to remove the soggy chip pieces. You then analyze the chip filtrate for Clâ concentration using the Mohr method.

First you prepare a solution of silver nitrate, AgNO3, and titrate it against 0.500 g of KCl using the Mohr method. You find that it takes 64.2 mL of AgNO3 titrant to reach the equivalence point of the reaction.

You then use the same silver nitrate solution to analyze the chip filtrate in a Mohr reaction, finding that the solution yields a rusty brown precipitate when 47.5 mL of titrant is added.

Part A

If the sample of chips used to make the filtrate weighed 75.5 g , how much NaCl is present in one serving (105 g ) of chips?

Express your answer to three significant figures and include the appropriate units.

salt/serving =

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