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Calculate % of C and H.
written 7.9 years ago by gravatar for vibhavarikulkarni vibhavarikulkarni • 520 modified 3.9 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

Subject:- Applied Chemistry 2.

Topic:- Fuels.

Difficulty:- Medium


1.5 gm of a coal sample was taken for C and H estimation by combustion method. The increase in weights of tube containing anhydrous CaCl2 and bulb containing KOH was found to be 1.25 gm and 4.88 gm respectively.

Calculate % of C and H.
advanced engineering chemistry
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written 7.8 years ago by gravatar for vibhavarikulkarni vibhavarikulkarni • 520 modified 6.9 years ago by gravatar for sanketshingote sanketshingote • 100

C + O2 CO2 12 32 44 C% = weight of CO2 formed /weight of coal sample x12/44 x100 = 4.88/1.5 x12/44 x100 % of carbon in coal = 88.7 % 2H2 +O2 2H2O 4 32 36 2 16 18 H% = weight of H2O formed / weight of coal …

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