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The Alpha-linolenic acid is one of a large group of fatty acids that are found in fish oil, walnuts and canola seeds. These nutrients are necessary for good health. All of these fatty acids contains of an unsaturated hydrocarbon that is terminated by a carboxylic acid functional group. When a 12.47554 g example of unknown fatty acid is burned in oxygen, the process consumes 30.24 g of O2. Explain the reaction produces 33.8877 g of CO2 and 8.82784 g of H2O. Based on these results as well as the molar masses of H (1.008 g), C (12.01 g) and O (16.00 g), how many hydrogen atoms are in each formula unit of the acid, CxHyO2? (What is the value of y?)
A compound containing only C, H, and O, was extracted from the bark of the sassafras tree. The combustion of 29.9 mg produced 81.3 mg of CO2 and 16.6 mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular fo..
A sample of methane gas at a pressure of 0.801 atm and a temperature of 26.9oC, occupies a volume of 687 mL. If the gas is allowed to expand at constant temperature until its pressure is 0.438 atm, the volume of the gas sample will be
If the ethane is burning at the rate of 0.20 mol/L.s, at what rate are CO2, and H2O being produced?
Give the formulas of any solid products formed when the sodium salt of each of the anions in the far-left column is treated separately with 1)NH3 and BaCl2 solutions and 2) HNO3 and AgNO3 solutions. If no Precipitate would form write no reaction.
How many grams of dry NH4Cl need to be added to 2.30L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.83? Kb for ammonia is 1.8 * times 10^-5
a mixture initially contains a b and c in the following concentrations a 0.600 m b 1.00 m and c 0.400 m. the
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.62 M arsenic acid solution.
Oftern solutions can be hazardous in ways that are not necessarily related to ther acidity of basicity. Briefly comment on the hazards that you need to be aware of when working with
how many calories are used to heat a 50g sample of water from 8.1 degrees celius to 27.4 degrees celcius?
Consider the reaction 4KO2(s) + 2CO2(g)->2K2CO3(s) + 3O2(g) . How much KO2 is needed to react with 75.0 L of carbon dioxide at STP?
Considering the balanced chemical equation at the beginning of Section 4.2, why is it incorrect to say that if we burn 2 kg of octane, we would get 16 kg of CO2 as a product
Determine the volume of 0.220 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is:
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