Which solution is found in Beaker D based on the conductivity meter readings?

Which solution is found in Beaker D based on the conductivity meter readings?

• A. Pure water
• B. Natural water
• C. 20% HCl
• D. Saltwater

Answer: (C)

The conductivity meter readings indicate the presence of ions in the solution, which directly relate to the conductivity level. In this scenario, a 20% HCl solution is highly conductive due to the dissociation of hydrochloric acid into hydrogen ions (H⁺) and chloride ions (Cl⁻) in water. This results in a significant increase in the number of free ions that can conduct electricity, thereby giving a high conductivity reading. Pure water, on the other hand, has very low conductivity because it lacks sufficient ions. Natural water, while it may have some minerals and salts, typically does not reach the high conductivity levels of strong acids or salt solutions. Saltwater, likewise, has a relatively high conductivity due to dissolved sodium (Na⁺) and chloride (Cl⁻) ions, but a concentrated acid solution like 20% HCl would generally exhibit even higher conductivity due to the greater number of hydrogen ions. Thus, based on the conductivity meter readings, the solution found in Beaker D is identified as 20% HCl because it likely displays the highest conductivity among the given options, signifying a high concentration of dissociated ions.

The conductivity meter readings indicate the presence of ions in the solution, which directly relate to the conductivity level. In this scenario, a 20% HCl solution is highly conductive due to the dissociation of hydrochloric acid into hydrogen ions (H⁺) and chloride ions (Cl⁻) in water. This results in a significant increase in the number of free ions that can conduct electricity, thereby giving a high conductivity reading.

Pure water, on the other hand, has very low conductivity because it lacks sufficient ions. Natural water, while it may have some minerals and salts, typically does not reach the high conductivity levels of strong acids or salt solutions. Saltwater, likewise, has a relatively high conductivity due to dissolved sodium (Na⁺) and chloride (Cl⁻) ions, but a concentrated acid solution like 20% HCl would generally exhibit even higher conductivity due to the greater number of hydrogen ions.

Thus, based on the conductivity meter readings, the solution found in Beaker D is identified as 20% HCl because it likely displays the highest conductivity among the given options, signifying a high concentration of dissociated ions.