Calculations of pH and pOH

Find [H+], [OH-] and pOH.

• [H+] = 5.62 x 10 ^-9 [OH-] = 1.78 x 10 ^-6 pOH = 5.75
• [H+] = 7.76 x 10 ^-2  [OH-]= 5.19 x 10 ^-5 pOH = 5.75
• [H+] = 6.25 x 10 ^-8
  [OH-]= 4.36 x 10 ^-2      
   pOH= 5.75
  
• [H+] = 4.56 x 10 ^-9
   [OH-] =5.76 x 10 ^-5
  pOH = 5.75
  

What is the pH of a solution that has a [H+] of 2.5 x 10 ^-5?

• 4.60
• 5.0
• 2.5
• 7

What is the pOH of a solution where the [OH-] is 7.3 x 10 ^-2 M?

• -1.14
• -2.0
• 1.14
• 7.3

What is the [OH-] if the [H+] is 1.0 x 10^-3M?

• 1.0 x 10^-3 M
• 6.02 x 10^-23 M
• 1.0 x 10^-14 M
• 1.0 x 10^-11 M

What is the [H+] if the pH is 4.0?

• 1.0 x 10^-10  M
• 1.0 x 10^-4  M
• 1.0 x 10^-14  M
• 1.0 x 10^-7  M

What is the pOH of a solution that has a pH of 2?

• 10
• 12
• 14
• 1

The lower the pH, the greater the concentration of :

• OH-
• H+

What is the pH of a solution where the [H+] is 1.0 x 10^-11?

• 11
• 13
• 14
• 1

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• Cabbage
• Milk
• None of the above

Drain Cleaner is a strong base, what is the pH level of Drain Cleaner ?

• 13
• 14
• 1
• 2