Examlex
Which statements about acid-base equilibria are true?
I. The pKa is the negative log10 of the acid equilibrium constant.
II. A stronger acid has a pKa with a smaller value than a weaker acid.
III. The stronger the base, the smaller the pKa of its conjugate acid.
IV. The Ka = K [HA].
Q5: What is the difference between anabolic and
Q9: What are "calorie creep" and the weight-loss
Q15: What is the recommended intake of total
Q16: A <sup>1</sup>H-NMR shows a single signal and
Q40: Which of the following belong in the
Q42: Which of the following compounds is a
Q46: 4-(2-hydroxyethyl)-1-methylcyclohexanol reacts with HBr (gas) in dioxane
Q52: Which structure is correctly named 3S,4S-3,4-dimethylhexane ?<br><img
Q79: Bromination (Br<sub>2</sub>), catalytic hydrogenation (H<sub>2</sub>/Pt), and hydration
Q88: Which diagram represents the slowest reaction? <img