Corrects the ones that are marked wrong(6a, 6e, and 7) completely and SHOW ALL CALCULATIONS: 6. A student titrates 3 samples of KHP, The experimental data collected is shownbelow.KHP (g) | Vfinal (mL) | Vmtal (mL) | Votal NAOH (mL)0.7415Titration #45.f..122.051.5520.500.711540.8022.0518.7530.727321.031.3519.68a) What is the molarity of NaOH using the data from titration 1? Show all steps incalculation.Moles of KHP =.74154204.27.9/mol3.43.10-0ml70.50ML-10-8nL/L%3DCuncentration =b) What is the molarity of NaOH using the data from Titration 2? Show all steps inthe calculation.Moles of kHP =0,71154- 204.14 5/hol=4.48x102mol3. 68.10-2 1*uol75 mL•10-L/L= 0.184 MConcentration =c) What is the molarity of NaOH using the data from Titration 3? Show all steps inthe calculation. Moles of KHP0.7213 4204.24ニ2.510.10-5,Concentintion= Th:08 L10 vnL/L= 0.181M%3DTh.08 m L•10"mL/Ld) What is the average molarity?184+( What is the relative standard deviation of the molarities? Show all steps in thecaleulation. Standurd Deviation= S = 2(Xi-X)-%3DS= 0.177-0.181) M+ (0-184 - 0.181)-M +(0.181-0.181 M= 4.528 ×10- MX 1000Relative Standard eviation = 4.528×10°M100D.181 M0.004528M.0.181 MX 100 =2-500%0Y Is the data within the precision standard?,No, the data is nit within, the precision standard sincethe fint valve, 0.177 is not, close' to the seçond valve,0.184. Even though the relative standard devintion isouly 2.50%,the 4truth is that it can be improved.8. Should the student perform more titrations?order to reduce even 'more +hote tritrationsAnd thercfore, the relative rtandard deviationof the wmorality of NaCH.Yes the student sliould perfurm, moreor der to reduce even 'more the standard deviation48

Reaction between KHP and NaOH KHP + NaOH ------> H2O + NaKP

6. A student titrates 3 samples of KHP. The experimental data collected is shown below. Titration # KHP (g) | Vínal (mL) | Vmital (mL) | Votal NaOH (mL) 20.50 45.f. 1 0.7415 22.05 1.55 2 0.7115 40.80 22.05 18.75 3 0.7273 21.03 1.35 19.68 a) What is the molarity of NaOH using the data from titration 1? Show all steps in

6. A student titrates 3 samples of KHP. The experimental data collected is shown below. Titration # KHP (g) | Vínal (mL) | Vmital (mL) | Votal NaOH (mL) 20.50 45.f. 1 0.7415 22.05 1.55 2 0.7115 40.80 22.05 18.75 3 0.7273 21.03 1.35 19.68 a) What is the molarity of NaOH using the data from titration 1? Show all steps in

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.93QE

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