Question

(08.04 MC)

Answer 1

Answer:

Both have a pH greater than 7, but NH₃ has a lower pH than KOH.

Explanation:

• Both of NH₃ and KOH are bases (can produce OH⁻), so both have a pH greater than 7.

• NH₃ is considered as a weak base (not completely ionized), while KOH is a strong base (completely ionized).

• If both NH₃ an KOH has the same concentration, KOH produces OH⁻ higher than that of NH₃.

• So, NH₃ has a lower pH than KOH.

• Thus the right choice is:

Both have a pH greater than 7, but NH₃ has a lower pH than KOH.