Answer Happy

Standardization of an NaOH solution. This is the 1st page of your report. After this sheet, are your data sheets After these sheets staple neatly calculations for the 3 thais that you are using in your final average (use 1 sheet per tral for these calculations) and lastly staple a lined sheet with answers to the post lab questions for experiment 9A & 9B (questions 1-5) from the lab manual (Use dimensional analysis as it has been presented to you in the lab) Use the value 204.2 for the KHP eq.wt. When doing calculations keep all sig figs, then round when reporting the value Report values in the spaces provided for those values Student Name Date completed Find three trials that are within 1% of each other based on the Normalities that you have determined To find the percent difference between three trials Highest Normality Lovest Normality Normality Trial A Normality + Trial B Number of Trials (3) + N Balance # N Normality Trial C Normality of your NaOH solution Show your calculation below. Percentage differance between these three trials Show your calculation below. Grading: Precision Calculations Post Lab N Accuracy The average of the three trials If you have three trials that are all within 1% of each other than find their average and use that average as the concentration (Normality) of your NaOH solution. Be sure to record that concentration on the bottle as soon as it is determined. Pen Because you know the concentration of the solution with great precision (in this case-4 significent figures) we call the solution "Standardized". You will use this solution in the majority of your subsequent titrations. Show trial numbers and corresponding normalities used for your average, Trial Trial Trial Legability for each trial. use the following formula: The Difference X 100% Percent Difference
Report Sheet Standardization of a Base. Mass of Erlenmeyer flask plus KHP Mass of Erlenmeyer flask Mass of KHP Equivalent weight of KHP Equivalents of KHP Buret reading of NaOH (FINAL) (ml) Buret reading of NaOH (INITIAL) (ml) Volume of NaOH used (ml) Calculated Normality of NaOH (equiv./liter) Trial # 1 Trial # 2 Trial #3 Trial # 4
Report Sheet Standardization of a Base. Mass of Erlenmeyer flask plus KHP Mass of Erlenmeyer flask Mass of KHP Equivalent weight of KHP Equivalents of KHP Buret reading of NaOH (FINAL) (ml) Buret reading of NaOH (INITIAL) (ml) Volume of NaOH used (ml) Calculated Normality of NaOH (equiv./liter) Trial # 5 Trial #6 Normality. N=0,01 L Trial #7 Trial #8 XI.olx mm my/ea ег