Chemistry-
General
Easy

Question

The pH of a 0.001 M NaOH will be

  1. 3  
  2. 2  
  3. 11  
  4. 12  

The correct answer is: 11


    0.001 M of NaOH means open square brackets O H to the power of minus end exponent close square brackets equals 0.001
    equals 10 to the power of negative 3 end exponent M rightwards double arrow p O H equals 3
    p H plus p O H equals 14 rightwards double arrow p H equals 14 minus 3 equals 11

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