Buffer Lab Write Up for chem 112, Lab Reports of Chemistry

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Lorn. x LON 20 \ N\ HC.H,O; \ 00 ayy ‘ Calculation: DSO.AMLXO 20M l -O.)M 0.4 ul O0,0ML NaCH,0; \ Calculation: Adding HCI solution to buffer solution and to distilled water. Volume | Total volume of HC! solution pH reading pH reading of HCl added, mL solution Sample calculation: Buffer solution water added, mL OmL + SmL = SmL total Sml total + SmL. = 10mL total 0 0 4.75 7.93 5 5 4.69 2.38 3 10 4.59 2.12 10 20 4.37 1.90 10 30 4.12 1.78 20 50 2.74 1.67 50 100 1.97 1.59 Adding NaOH solution to buffer solution and to distilled water. Volume of NaOH Total volume of pH reading pH reading solution added, mL NaOH solution added, mL Buffer solution walter 0 0 4.16 7.89 5 5 5.12 12.02 3 10 5.37 12.26 10 20 5.86 1241