The student who performed this experiment in the question above wrote the following discussion: "the gas sample is known to contain compounds of only hydrogen and carbon. the measured molecular weight of the flammable gas is closest propane (44.1 g/mole), but lies between propane and butane (58.1 g/mole). i therefore conclude that there is a possibility that the sample is not a pure compound but rather is equal parts propane and butane." this seems qualitatively reasonable except her hypothesis that the gas is a 1: 1 mixture is not supported by the data. what gas mixture is suggested by the molecular weight measured in the experiment? give the percent propane in the mixture in the box provided. do not enter the percent symbol. enter your answer with the correct number of significant digits.
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Chemistry, 22.06.2019 11:00
Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.
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Chemistry, 22.06.2019 20:00
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
The student who performed this experiment in the question above wrote the following discussion: "th...
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