Use the information in the table to answer the question.

Acid

HA

HB

HC

pH of Solution

5.6

3.9

4.7

Which list shows the acidic solutions in order from least conductive of electricity to most conductive?

(1 point)

OHC, HB, НА

HB, НС, НА

OHA, HB, HC

HA, HC, HB

1 answer

The conductivity of an acid solution is generally related to its concentration of ions. A lower pH indicates a higher concentration of hydrogen ions (H⁺), and thus a more conductive solution.

Given the pH values:

  • HA: pH 5.6
  • HB: pH 3.9
  • HC: pH 4.7

From the pH, we can infer the following:

  • HA (pH 5.6) has the highest pH, which means it has the least concentration of H⁺ ions and is the least conductive.
  • HC (pH 4.7) is more conductive than HA but less than HB.
  • HB (pH 3.9) has the lowest pH, indicating it has the highest concentration of H⁺ ions and is the most conductive.

Thus, the order from least conductive to most conductive is HA < HC < HB.

The correct answer is: HA, HC, HB.