What simplifying assumptions do we usually make in working problems involving th

Question

What simplifying assumptions do we usually make in working problems involving the ionization of a polyprotic acids? Why are they usually valid? Under what conditions do they fail? Answer by selecting all true statements.
The approximations are usually valid because the first ionization constant for the polyprotic acid is usually smaller than the second ionization constant.

If the first two ionization constants are not very different, the approximations fail.

If the first two ionization constants are not very different, the approximations are valid

The approximations are usually valid because the first ionization constant for the polyprotic acid is usually much larger than the second ionization constant.

The concentration of H+ and the conjugate base of the polyprotic acid are approximately equal

Nearly all of the H+ comes from the first ionization.

Nearly all of the H+ comes from the second ionization

Explanation / Answer

true statements

1)The approximations are usually valid because the first ionization constant for the polyprotic acid is usually much larger than the second ionization constant.

2) The concentration of H+ and the conjugate base of the polyprotic acid are approximately equal

3)Nearly all of the H+ comes from the first ionization.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.