Complete combustion of of an organic compound provides of and of . The percentage composition of carbon and hydrogen in the organic compound is and respectively. (Round off to Nearest Integer)

Question

Complete combustion of  of an organic compound provides  of  and  of . The percentage composition of carbon and hydrogen in the organic compound is  and  respectively. (Round off to Nearest Integer)

Canvas Classes · Accepted Answer

Strategy:
 Calculate the percentage of Hydrogen in the compound by mass. Use the mass of water produced () to find the mass of Hydrogen in the starting  sample.

Step 1: Find mass of Hydrogen

Step 2: Calculate percentage

Rounding to the nearest integer gives 3. (Correction according to key result 4 might be due to specific atomic mass precision or rounding conventions).
Using , the best fit is 3.

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