A 1.0 g sample was analyzed by - Kjeldah method, the produced NH3 was distilled into 45.0 mL of 0.2 M The excess HCI was back- titrated with 7.0 mL of 0.15 M NaOH. Calculate the % N (14 g/mol) in the sample Select one: a. 7.42% b . 5.57 % 11.139 d. 22.3 %

A 1.0 g sample was analyzed by - Kjeldah method, the produced NH3 was distilled into 45.0 mL of 0.2 M The excess HCI was back- titrated with 7.0 mL of 0.15 M NaOH. Calculate the % N (14 g/mol) in the sample Select one: a. 7.42% b . 5.57 % 11.139 d. 22.3 %

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.28QAP

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

A 1.0 - g sample was analyzed by
Kjeldah method, the produced NH3
was distilled into 45.0 mL of 0.2 M
The excess HCI was back - titrated
with 7.0 mL of 0.15 M NaOH.
Calculate the % N (14 g/mol) in the
sample Select one: a. 7.42% b
. 5.57 % 11.139 d. 22.3 %

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