According to the Brønsted-Lowry theory, an acid is any substance (molecule or io

Question

According to the Brønsted-Lowry theory, an acid is any substance (molecule or ion) that can transfer a proton (H+ ion) to another substance, and a base is any substance that can accept a proton. Acid-base reactions are proton-transfer reactions, as follows:

Chemical species whose formulas differ only by one proton are said to be conjugate acid-base pairs. Thus, A is the conjugate base of the acid HA, and HA is the conjugate acid of the base A. Similarly, B is the conjugate base of the acid BH+, and BH+ is the conjugate acid of the base B. Strong acids have very weak conjugate bases, and very weak acids have strong conjugate bases.

Part B

What is the conjugate base of HCO3? Express your answer as a chemical formula.

Part C

What is the conjugate acid of HPO42 ?

Express your answer as a chemical formula.

Part D

Among three bases, X, Y, and Z, the strongest one is Y, and the weakest one is Z. Rank their conjugate acids, HX, HY, and HZ, in order of decreasing strength.

Rank the acids from strongest to weakest. To rank items as equivalent, overlap them.

HX

HY

HZ

Explanation / Answer

Answer:-------------------

Part B

Conjugate base of HCO3- = CO32-

Part C

Conjugate acid of HPO42-  = H2PO4-

Part D

As we know that stong acid gives weak conjugate base and weak acid gives strong conjugate base,

So, the rank of the acid from strongest to weak,

HZ > HX > HY

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

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