Chemistry, 23.03.2020 19:33 20sgonzalez
1.In making your own culture media, state a good reason why you cooled the melted agar to 45ºC before pouring into the empty petri dishes. 2.What is a pure culture? How do you prove that a culture is pure? 3.What is the difference between an axenic culture and a pure culture?
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Which answer lists the fundamental forces in order from strongest to weakest
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According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead
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Chemistry, 22.06.2019 19:30
Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.
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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
1.In making your own culture media, state a good reason why you cooled the melted agar to 45ºC befor...
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