Chemistry, 17.03.2021 23:40 dalilahrodriguez
Which of the following mixtures would represent a proper buffer solution? A buffer solution should have approximately the same moles of a weak acid and its conjugate base (or a weak base and its conjugate acid) in a solution since the species will be at equilibrium (with Ka << 1, for instance) and the common-ion effect will be in place in order for the buffer to be effective.
Group of answer choices
2.0 M hydrochloric acid & water
Sodium chloride & hydrochloric acid, 1.0 M each
Sodium sulfate & sulfuric acid, 1.0 M each
Sodium formate & formic acid, 0.1 M each
0.1 M sodium nitrate & water
Answers: 2
Chemistry, 22.06.2019 07:00, maryjane8872
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Chemistry, 22.06.2019 16:50, briansalazar17
Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest
Answers: 3
Chemistry, 22.06.2019 19:40, trodgers0202
Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests. which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory
Answers: 3
Chemistry, 22.06.2019 20:30, lexibyrd120
Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that
Answers: 2
Which of the following mixtures would represent a proper buffer solution? A buffer solution should h...
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