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Unformatted text preview: that all areas of the pH paper are moistened. If needed, a glass rod may be used. Answer all the questions in this section, and identify the unknown. Your unknown is a solution used in PART I or PART II of this experiment. 2 Chemistry 52 EXPERIMENT #3 pH CALCULATIONS REPORT FORM NAME : ____________________ PARTNER: __________________ PART I: SOLUTIONS OF ACIDS Substance Concentration pH [H+ ] pOH [OH- ] Strong Acid, or tested in 1x10-n, M 1x10-n, M 1x10-n , M Weak Acid HCl, 0.1 M HCl, 0.001 M HCl, 0.00001 M 5* HC2H3O2 , 0.1 M HC2H3O2 , 0.001 M HC2H3O2 , 0.00001 M 5* + [H ] AS A FUNCTION OF ACID CONCENTRATION Type of Concentration [H+ ] Acid of Acid, M 1 x 10-n , M [H+ ], M 1 x 10-1 STRONG 1 x 10-3 1 x 10-5 1 x 10-1 WEAK 1 x 10-3 1 x 10-5 10-7 10-5 10-4 10-3 10-2 10-1 0 10 Conc. of Acid, M * These solutions are not available in the laboratory. The pH measurement provided is to be used along with the other data obtained by measurement. 3 Chemistry 52 EXPERIMENT #3 PART II: SOLUTIONS OF BASES Substance Concentration pH [H+ ] pOH [OH- ] Strong Base or tested in 1x10-n , M 1x10-n , M 1x10-n , M Weak Base NaOH, 0.1 M NaOH, 0.001 M NaOH, 0.00001 M 9** NH4OH, 0.1 M NH4OH, 0.001 M NH4OH, 0.00001 M 9** + [H ] AS A FUNCTION OF BASE CONCENTRATION Type of Concentration [H+ ] -n Base of Base, M 1x10 , M 1x10-1 [H+ ], M STRONG 1x10-3 1x10-5 1x10-1 WEAK 1x10-2 1x10-3 10-14 10-5 10-4 10-3 10-2 10-1 0 10 Conc. of Base, M * These solutions are not available in the laboratory. The pH measurement provided is to be used along with the...
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