A 1.2525 g sample of canned tuna was analyzed by the Kjeldahl method: 30.25 mL of 0.1200 N HCl was required to titrate the liberated ammonia. Calculate the % N in the sample. a. 3.25 % b. 5.32 % c. 4.06 % d. 7.46 %

A 1.2525 g sample of canned tuna was analyzed by the Kjeldahl method: 30.25 mL of 0.1200 N HCl was required to titrate the liberated ammonia. Calculate the % N in the sample. a. 3.25 % b. 5.32 % c. 4.06 % d. 7.46 %

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.16QAP

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Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

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Question

A 1.2525 g sample of canned tuna was analyzed by the Kjeldahl method: 30.25 mL of 0.1200 N HCl was required to titrate the liberated ammonia. Calculate the % N in the sample.

a. 3.25 %

b. 5.32 %

c. 4.06 %

d. 7.46 %

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