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Worksheet: pH Calculations - pH Practice with Answers, Exercises of Chemistry

Its all about chemistry which is study of matter which contain questions at pH with answers.

Typology: Exercises

2020/2021

Uploaded on 04/20/2021

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Worksheet: pH Calculations Name
-------
The letters "pH" represent the French words "pouvoir hydrogene" which means
"hydrogen power".
definition of pH is pH is equa/ to the negative log {logarithm) of the
-'+--"-'---"-'---"-'---"-'-- ion concentration of a solution.
The logarithm of a number is the power to which 10 must be raised to
equal that number. /1,,,'.
A pH ':alue of less than 7 indicates a(n) _______ solution. A pH value
of .,,...... ____ indicates a neutra! solution. A pH value of more than 7 indicates a(n)
lYl> I { soluti on.
PROBLEMS: Show all work and circle the final answer.
1. Determine the pH of a 0.010 M HNO3 solution.
2. What is the pH of a 2.5 x 10-6 M solution of HCI?
',
4. Calculat'èthepH of a 0.0010 M NaOH solution.
of a 0.020M Sr(OH)2 solution?
pf2

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Worksheet: pH Calculations Name -------

The letters "pH" represent the French words "pouvoir hydrogene" which means "hydrogen power".

  • (^) definition of pH is pH is equa/ to the negative log {logarithm) of the -'+--"-'---"-'---"-'---"-'-- ion concentration of a solution.
  • (^) The logarithm of a number is the power to which 10 must be raised to equal that number.

A pH ':alue of less than 7 indicates a(n) _______ solution. /��1,,,'. A pH value

of .,,......____ indicates a neutra! solution. A pH value of more than 7 indicates a(n) lYl> I{ solution.

PROBLEMS: Show all work and circle the final answer.

  1. Determine the pH of a 0.010 M HNO3 solution.

2. What is the pH of a 2.5 x 10-^6 M solution of HCI?

',

  1. Calculat'èthepH of a 0.0010 M NaOH solution.

of a 0.020M Sr(OH)2 solution?

  1. a) What is the hydrogen ion concentration of an aqueous HCI solution that has a pH of 3.0?

b) What is the hydroxide ion concentration of this same solution?

e) Which ion, H+^ or ;""" (^) •�,,.

d) Is this solution acidic or basie? ____^1 ....,.-'_, _^1 __, �-" _: ,____

  1. Find the [H+] and the [OH-] of a solution with a pH of 3.494.

Is this solution acidic or basic? .....(./ ________