Laboratory tests on the urine of a patient identified the presence ofmethylmalonate (−OOC–CH(CH3)–COO−). Methylmalonate is bestdescribed as which one of the following A: A strong acid B: The conjugate base of a weak acid C: It is 100% dissociated at its pKa. D: It is 50% dissociated at the pH of the blood. E: It is a major intracellular buffer.
Laboratory tests on the urine of a patient identified the presence ofmethylmalonate (−OOC–CH(CH3)–COO−). Methylmalonate is bestdescribed as which one of the following A: A strong acid B: The conjugate base of a weak acid C: It is 100% dissociated at its pKa. D: It is 50% dissociated at the pH of the blood. E: It is a major intracellular buffer.
(1) The weak monoprotic acid HA is 2.5% dissociated in 0.10 mol·L-1solution. What is the acidity constant, Ka, of HA?(2)A certain solution of HA has a pH=2.51. What is the concentration of the solution?
(1) The weak monoprotic acid HA is 2.5% dissociated in 0.10 mol·L-1solution. What is the acidity constant, Ka, of HA?(2)A certain solution of HA has a pH=2.51. What is the concentration of the solution?
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