Calculate the % of N and S in the coal sample.

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written 7.9 years ago by

vibhavarikulkarni • 520

modified 3.9 years ago by

pedsangini276 • 4.8k

Subject:- Applied Chemistry 2.

Topic:- Fuels.

Difficulty:- Medium

advanced engineering chemistry

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1 Answer

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written 7.8 years ago by

vibhavarikulkarni • 520

Given: Given: Weight of coal sample = 1.56 gm NaOH consumed = 6.25 ml Normality of H2SO4 and NaOH = 0.1N Quantity of H2SO4 used = 50ml Amount of H2SO4 used = (50-6.25) =43.75 ml N% = Volume of acid consumed x Normality of acid
x1.4/weight of coal sample =43.75 …

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