Chemistry, 19.01.2021 22:20, alexismurcia550
Chemical analysis of vitamin D3 yields the following composition: 84.31% C, 4.16% O, and 11.53 H with a molar mass of 384 g/mol. what are the empirical and molecular formulas for vitamin D3?
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Chemistry, 22.06.2019 10:00, ellaemtagedeane
Nonpoint source pollution is difficult to control because it
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Chemistry, 22.06.2019 20:00, 20calzoy
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
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