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9 solutions

Combustion Analysis

Q. (a) Methane, CH4, burns in the presence of oxygen to form water vapor and carbon dioxide. Write a balanced equation for this combustion reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.) (b) Specify the number and types of bonds broken for each molecule of methane burned. Each molecule of CH4 has ___ carbon-hydrogen single bond(s). Each molecule of O2 has ___ oxygen-oxygen double bond(s). For each molecule of methane burned, ___ carbon-hydrogen single bond(s) are broken. Also, because ___ molecule(s) of oxygen are utilized in the balanced equation, ___ oxygen-oxygen double bond(s) are broken. (c) If 50.0 kJ of energy is released for each gram of methane burned, how many kJ of energy will be released when 3.5 kg of the fuel undergoes combustion?

Solved • Jul 11, 2019

Combustion Analysis

Q. One of the components of natural crude oil and coal deposits is benzo[j]fluoranthene, a compound with a molecular mass of about 252.3 amu, containing only carbon and hydrogen. A 3.452 mg sample of benzo[j]fluoranthene burns to give 12.04 mg of CO2. Determine its empirical and molecular formulas. (Omit states-of-matter from your answer.) Empirical formula Molecular formula

Solved • Jul 8, 2019

Combustion Analysis

Q. Complete combustion of 2.30 g of a hydrocarbon produced 7.35 g of CO2 and 2.63 g of H2O. What is the empirical formula for the hydrocarbon? Insert subscripts as necessary.

Solved • Jul 1, 2019

Combustion Analysis

Q. Upon combustion, a 0.8233 g sample of a compound containing only carbon, hydrogen, and oxygen produced 2.445 g CO2 and 0.6003 g H2O. Find the empirical formula of the compound.

Solved • Jun 29, 2019

Combustion Analysis

Q. A compound contains only C, H and N. Combustion of 70 mg of the compound produces 132 mg CO2 and 54 mg H2O. What is the empirical formula of compound?

Solved • May 20, 2019

Combustion Analysis

Q. How did they find out the number of moles C or H when the chemical equation was not given at the first place? I do not get the part where they multiple 1 molc/ 1 mol co2 and 2 molh/ 1 mol h2o.

Solved • May 5, 2019

Combustion Analysis

Q. The complete combustion of a 0.7125 gram sample of a compound yielded 1.270 grams of CO2 and 0.5200 grams of H2O. What is the empirical formula of the compound if it contains only carbon, hydrogen, and oxygen?

Solved • May 1, 2019