To determine the conductivity of acidic solutions, we need to consider their concentration of hydrogen ions (H⁺). The lower the pH, the higher the concentration of H⁺ ions, which means higher conductivity.
Given the pH values:
- ha: 5.6
- hc: 4.7
- hb: 3.9
The order of acidity (and therefore conductivity) from least conductive to most conductive is:
- ha (5.6) - least acidic and least conductive
- hc (4.7) - more acidic than ha, moderate conductivity
- hb (3.9) - most acidic and most conductive
So, the final order from least conductive to most conductive is:
ha < hc < hb