Chemistry, 30.03.2020 19:37 ballislifeqw3089
Which acid is the best choice to create a buffer with pH=pH= 2.07? Which acid is the best choice to create a buffer with 2.07? chlorous acid (HClO2),pKa=1.95(HClO2),pKa=1.95 hypochlorous acid (HClO),pKa=7.54(HClO),pKa=7.54 nitrous acid (HNO2),pKa=3.34(HNO2),pKa=3.34 acetic acid (HCH3CO2),pKa=4.76
Answers: 3
Chemistry, 22.06.2019 00:30
Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1
Answers: 3
Chemistry, 22.06.2019 04:30
How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer
Answers: 1
Chemistry, 22.06.2019 08:30
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Chemistry, 22.06.2019 09:20
Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
Answers: 3
Which acid is the best choice to create a buffer with pH=pH= 2.07? Which acid is the best choice to...
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