Chemistry, 11.10.2019 03:30 babygreg2001p97abr
Many moderately large organic molecules containing basic nitrogen atoms are not very soluble in water as neutral molecules, but they are frequently much more soluble as their acid salts. assuming that ph in the stomach is 2.5, indicate whether each of the following compounds would be present in the stomach as the neutral base or in the protonated form:
(a) nicotine kb = 7x10^-7
(b) caffeine, kb= 4x10^-14
(c) strychnine kb= 1x10^-6
(d) quinine, kb= 1.1x10^-6
Answers: 1
Chemistry, 21.06.2019 23:00
Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.
Answers: 3
Chemistry, 22.06.2019 03:00
Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge
Answers: 1
Chemistry, 22.06.2019 10:10
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Many moderately large organic molecules containing basic nitrogen atoms are not very soluble in wate...
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