Question

Calculate the pH corresponding to each of the pOH values listed, and indicate whether each solution is acidic, basic, or neutral. a. \(\mathrm{pOH}=4.32\) b. \(\mathrm{pOH}=8.90\) c. \(\mathrm{pOH}=1.81\) d. \(\mathrm{pOH}=13.1\)

Short answer

a. pH = 9.68, basic solution b. pH = 5.10, acidic solution c. pH = 12.19, basic solution d. pH = 0.9, acidic solution

Step-by-step solution

a. Calculate the pH for pOH = 4.32

We will use the equation \(\mathrm{pH} + \mathrm{pOH} = 14\) to find the pH of the solution. Given, pOH = 4.32 To find pH, we will rearrange the equation as follows: pH = 14 - pOH Therefore, pH = 14 - 4.32 = 9.68

a. Determine if the solution is acidic, basic, or neutral

A solution is considered: - acidic if pH < 7 - neutral if pH = 7 - basic if pH > 7 Since the pH is 9.68, which is greater than 7, the solution is basic.

b. Calculate the pH for pOH = 8.90

We will use the equation \(\mathrm{pH} + \mathrm{pOH} = 14\) to find the pH of the solution. Given, pOH = 8.90 To find pH, we will rearrange the equation as follows: pH = 14 - pOH Therefore, pH = 14 - 8.90 = 5.10

b. Determine if the solution is acidic, basic, or neutral

A solution is considered: - acidic if pH < 7 - neutral if pH = 7 - basic if pH > 7 Since the pH is 5.10, which is less than 7, the solution is acidic.

c. Calculate the pH for pOH = 1.81

We will use the equation \(\mathrm{pH} + \mathrm{pOH} = 14\) to find the pH of the solution. Given, pOH = 1.81 To find pH, we will rearrange the equation as follows: pH = 14 - pOH Therefore, pH = 14 - 1.81 = 12.19

c. Determine if the solution is acidic, basic, or neutral

A solution is considered: - acidic if pH < 7 - neutral if pH = 7 - basic if pH > 7 Since the pH is 12.19, which is greater than 7, the solution is basic.

d. Calculate the pH for pOH = 13.1

We will use the equation \(\mathrm{pH} + \mathrm{pOH} = 14\) to find the pH of the solution. Given, pOH = 13.1 To find pH, we will rearrange the equation as follows: pH = 14 - pOH Therefore, pH = 14 - 13.1 = 0.9

d. Determine if the solution is acidic, basic, or neutral

A solution is considered: - acidic if pH < 7 - neutral if pH = 7 - basic if pH > 7 Since the pH is 0.9, which is less than 7, the solution is acidic.