Chemistry, 04.09.2019 20:30 lindseycagle00
Calculate the ph of a water at 25°c that contains 0.75mg/l of carbonic acid. assume that [h+] = [hco3-] at equilibrium and neglect the dissociation of water. (note: pkafor h2co3is 6.35. assume there is no further dissociation of hco3-)
Answers: 2
Chemistry, 22.06.2019 22:00
8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these
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Chemistry, 23.06.2019 01:30
Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.
Answers: 2
Chemistry, 23.06.2019 06:30
Consider the heating curve of h2o and line segments a, b, and c. several changes are taking place at a, b, and c. all but one would be an appropriate description as e move through segments a, b and then c.
Answers: 3
Chemistry, 23.06.2019 08:40
The half-life of a certain element is 100 days. how many half-lives will it be before only one eighth of this elementremains?
Answers: 1
Calculate the ph of a water at 25°c that contains 0.75mg/l of carbonic acid. assume that [h+] = [hco...
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