ARRANGE THE FOLLOWING 0.1 M SOLUTIONS IN ORDER OF INCREASING PH
To arrange the following 0.1 M solutions in order of increasing pH, we need to determine the acidity of each solution. pH is a measure of the hydrogen ion concentration and indicates the level of acidity or alkalinity.
Here are the solutions in increasing order of pH:
1. Sodium chloride (NaCl): This solution does not contain any acidic or basic properties, so it is neutral. The pH of a neutral solution is 7.
2. Sodium hydroxide (NaOH): Sodium hydroxide is a strong base and has a high pH. Its pH is approximately 14.
3. Hydrochloric acid (HCl): Hydrochloric acid is a strong acid and has a low pH. Its pH is approximately 1.
Therefore, the solutions arranged in increasing order of pH are:
Hydrochloric acid (HCl) [pH 1] < Sodium chloride (NaCl) [pH 7] < Sodium hydroxide (NaOH) [pH 14]
To arrange the following 0.1 M solutions in order of increasing pH, we need to understand how pH is determined.
1. pH is a measure of the acidity or alkalinity of a solution and is defined as the negative logarithm (base 10) of the concentration of hydrogen ions (H+) in a solution.
2. A lower pH indicates a higher concentration of hydrogen ions, making the solution more acidic.
3. Similarly, a higher pH indicates a lower concentration of hydrogen ions, making the solution more alkaline or basic.
To determine the pH of a solution, you can use the following steps:
1. Convert the given concentration of each solution to the molarity (moles per liter) of hydrogen ions (H+). Since all the solutions are 0.1 M, the molarity of H+ in each solution is also 0.1 M.
2. Take the negative logarithm (base 10) of the molarity of H+ to calculate the pH.
- For example, pH = -log[H+].
Now, let's arrange the 0.1 M solutions in order of increasing pH:
1. pH = -log[H+] = -log(0.1) ≈ 1
2. pH = -log[H+] = -log(0.1) ≈ 1
(Note: Both solutions have the same pH value since their concentrations are the same.)
3. pH = -log[H+] = -log(0.1) ≈ 1
(Note: All three solutions have the same pH value since their concentrations are the same.)
Therefore, the 0.1 M solutions can be arranged in any order since they all have the same pH value, which is approximately 1.