10 Questions
If a solution has a pH between 8 and 14, it is classified as:
Basic
Which of the following substances is an example of a soluble base or alkali?
Sodium hydroxide (NaOH)
What is the characteristic property of alkalis?
They release hydroxide ions (OH-) in aqueous solutions
Which of the following equations represents the dissociation of a soluble base in water?
NaOH → Na+ + OH-
What is the pH range of a solution that is considered alkaline?
pH > 7
Which of the following statements correctly describes the relationship between an acid and its conjugate base?
The conjugate base has one fewer proton than the acid.
If a diprotic acid, H₂A, ionizes completely in water, what would be the pH of the resulting solution?
pH < 7.0
Which of the following statements correctly describes the strength of a triprotic acid?
The strength of a triprotic acid depends on the values of its three dissociation constants.
For a monoprotic acid, HA, which of the following expressions represents the acid ionization constant (Ka)?
Ka = [HA] / ([H₃O⁺][A⁻])
If a weak acid, HA, has a Ka value of 1.0 × 10⁻⁵, what can be inferred about the strength of its conjugate base, A⁻?
The conjugate base is a weak base.
Learn about the importance of maintaining a pH of 7.4 in human blood, where even a small deviation of 0.2 pH units could be fatal. Explore the evolving definitions of acids and bases over time.
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