A 3.0 g of coal sample was Kjeldahl and NH3 gas was absorbed in 45 mL of 0.1 N H2SO4. After the absorption, the excess (residual) acid required 8.5 mL of 0.1 N NaOH for exact neutralization. Determine the percentage of nitrogen in the coal sample.
A 3.0 g of coal sample was Kjeldahl and NH3 gas was absorbed in 45 mL of 0.1 N H2SO4. After the absorption, the excess (residual) acid required 8.5 mL of 0.1 N NaOH for exact neutralization. Determine the percentage of nitrogen in the coal sample.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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![4. A 3.0 g of coal sample was Kjeldahl and NH3 gas was absorbed in 45 mL of 0.1 N H2SO4. After
the absorption, the excess (residual) acid required 8.5 mL of 0.1 N NaOH for exact neutralization.
Determine the percentage of nitrogen in the coal sample.
[% nitrogen = 1.7033%]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8a556695-7fa0-4ba4-b955-cab2a7f2922f%2Fc258fdf6-2bd9-4aed-bf2c-91198c317049%2F5s6lzv_processed.png&w=3840&q=75)
Transcribed Image Text:4. A 3.0 g of coal sample was Kjeldahl and NH3 gas was absorbed in 45 mL of 0.1 N H2SO4. After
the absorption, the excess (residual) acid required 8.5 mL of 0.1 N NaOH for exact neutralization.
Determine the percentage of nitrogen in the coal sample.
[% nitrogen = 1.7033%]
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