Question
What would you predict about a chemical that has a hydrogen/hydronium ion concentration of 1 x 10−12 M? (2 points)
Group of answer choices
It will form salt and water when added to a base.
It contains no hydroxide ions.
It has high concentration of hydroxide ions.
It has a sour taste.
Group of answer choices
It will form salt and water when added to a base.
It contains no hydroxide ions.
It has high concentration of hydroxide ions.
It has a sour taste.
Answers
GPT-4o mini
A hydrogen/hydronium ion concentration of 1 x 10^-12 M corresponds to a pH of 12 (calculated using the formula pH = -log[H⁺]). This indicates that the solution is basic.
Given this information, let's evaluate the options:
1. **It will form salt and water when added to a base.** - This statement does not apply since the solution is already basic and adding more base will not result in the formation of salt and water but rather increase basicity.
2. **It contains no hydroxide ions.** - This is not correct. A basic solution implies the presence of hydroxide ions (OH⁻) in significant quantities.
3. **It has a high concentration of hydroxide ions.** - Correct. A pH of 12 indicates a low concentration of hydrogen ions and a high concentration of hydroxide ions.
4. **It has a sour taste.** - This is typically associated with acidic solutions rather than basic solutions.
Based on this analysis, the best prediction for a chemical that has a hydrogen/hydronium ion concentration of 1 x 10^-12 M is:
**It has a high concentration of hydroxide ions.**
Given this information, let's evaluate the options:
1. **It will form salt and water when added to a base.** - This statement does not apply since the solution is already basic and adding more base will not result in the formation of salt and water but rather increase basicity.
2. **It contains no hydroxide ions.** - This is not correct. A basic solution implies the presence of hydroxide ions (OH⁻) in significant quantities.
3. **It has a high concentration of hydroxide ions.** - Correct. A pH of 12 indicates a low concentration of hydrogen ions and a high concentration of hydroxide ions.
4. **It has a sour taste.** - This is typically associated with acidic solutions rather than basic solutions.
Based on this analysis, the best prediction for a chemical that has a hydrogen/hydronium ion concentration of 1 x 10^-12 M is:
**It has a high concentration of hydroxide ions.**