A small amount of sodium hydroxide is added to water. When the chemical reaction reaches equilibrium, the pH is 12. Which conclusion about sodium hydroxide is correct?(1 point) Responses The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong base. The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong base. The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong acid. The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong acid. The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong acid. The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong acid. The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong base. The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong base.
The correct answer is: The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong base.
The correct conclusion about sodium hydroxide is: The negative log of the concentration of OH- ions is 12. Sodium hydroxide is a strong base.
The correct conclusion about sodium hydroxide is: The negative log of the concentration of OH– ions is 12. Sodium hydroxide is a strong base.
To understand why this conclusion is correct, we need to consider the properties of sodium hydroxide and the pH scale.
Sodium hydroxide, also known as NaOH, is a strong base. When it dissociates in water, it releases hydroxide ions (OH–) into the solution. These OH– ions react with water and increase the concentration of hydroxide ions in the solution.
Now, let's talk about pH. The pH scale measures the concentration of hydrogen ions (H+) in a solution. It is a logarithmic scale, meaning that each unit represents a tenfold difference in acidity or basicity. A pH of 7 is considered neutral, pH values below 7 are acidic, and pH values above 7 are basic.
In this case, when sodium hydroxide is added to water, it increases the concentration of hydroxide ions (OH–) in the solution. The concentration of hydroxide ions in a basic solution is higher than that of hydrogen ions, so the pH of the solution increases. A pH of 12 indicates a highly basic solution.
Therefore, the correct conclusion is that the negative log of the concentration of OH– ions is 12, and sodium hydroxide is a strong base.