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22 solutions

Combustion Analysis

Q. combustion analysis of 0.150g of an unknown compound containing carbon, hydrogen , and oxygen produced 0.2607g of CO2 and 0.1418g of H2O. What is the % of C in this compound? What is the empirical formula of this compound?

Solved • Feb 17, 2020

Combustion Analysis

Q. A compound is composed of only C, H and O. The combustion of a 0.519-g sample of the compound yields 1.24 g of CO2 (MW = 44.01) and 0.255 g of H2O (MW = 18.02). What is the empirical formula of the compound? (a) C2H6O2 (b) C6H6O (c) C3H3O (d) CH3O (e) C2H6O5

Solved • Jan 13, 2020

Combustion Analysis

Q. A carbohydrate sample has a mass of 100g. It is totally burned, producing 76.5 g CO2 and 23.5 g of H2O. What is the empirical formula?

Solved • Dec 16, 2019

Combustion Analysis

Q. Determine the molecular formula for a compound having a molar mass of 90.04 g/mol containing carbon, hydrogen, and oxygen? Combustion analysis reveals 0.501 g of CO2and 0.103 g H2O from burning 0.514 g of the compound. How many atoms of carbon are in your formula?

Solved • Oct 29, 2019

Combustion Analysis

Q. Explain why, in combustion analysis, we cannot determine the amount of oxygen in the sample directly from the amount of oxygen in the products H2O and CO2.

Solved • Oct 29, 2019

Combustion Analysis

Q. Explain how the combined mass of CO2 and H2O produced in combustion analysis can be greater than the mass of the sample being analyzed.

Solved • Oct 29, 2019

Combustion Analysis

Q. What is the empirical formula of a compound containing C, H, and O if combustion of 1.23 g of the compound yields 1.8 g CO2 and 0.74 g H2O? (a)CH3O (b)C2H3O (c)CHO (d)C2H3O2 (e)CH2O

Solved • Oct 27, 2019