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Following a standardization reaction, the concentration of an aqueous solution of NaOH is determined to be 0.4510 M. a. What is the mass of NaOH in 50.0 mL of this solution? Show your work. b. What mass of KHP would be needed to completely react with 50.0 mL of this NAOH solution? Show your work.

Following a standardization reaction, the concentration of an aqueous solution of NaOH is determined to be 0.4510 M. a. What is the mass of NaOH in 50.0 mL of this solution? Show your work. b. What mass of KHP would be needed to completely react with 50.0 mL of this NAOH solution? Show your work.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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I need help with questions 3a and 3b
Experiment # 11: Acid-Base Titration: Standardization of NaOH Data and results Data table *Remember to include units Trial 1 Trial 2 Trial 3 Trial 4 Mass of KHC&H4O4 (KHP) 1.0210g 1.0284g 1.0476g Initial buret reading (NaOH) 0.00ml 0.00ml 0.00ml Final buret reading (NAOH) 15.78ml 15.00ml 15.27ml Volume of NAOH used 15.78ml 15.00ml 15.27ml Results table Trial 1 Trial 2 Trial 3 Trial 4 1.0284g/204.22MW-0.50357 n Moles of KHP n=g/MW Moles of NaOH n(NaOH)=n(KHP) n(NaOH)=n(KHP)=0.50357 n Volume of NaOH (L) 15/1000=0.015 L Molarity of NaOH M= n/V 0.0050357n/0.015L=0.34 M Average molarity of NaOH 0.34+0.3359+0.3168=0.99/3=0.3 average Molarity Sample calculation:
Transcribed Image Text:Experiment # 11: Acid-Base Titration: Standardization of NaOH Data and results Data table *Remember to include units Trial 1 Trial 2 Trial 3 Trial 4 Mass of KHC&H4O4 (KHP) 1.0210g 1.0284g 1.0476g Initial buret reading (NaOH) 0.00ml 0.00ml 0.00ml Final buret reading (NAOH) 15.78ml 15.00ml 15.27ml Volume of NAOH used 15.78ml 15.00ml 15.27ml Results table Trial 1 Trial 2 Trial 3 Trial 4 1.0284g/204.22MW-0.50357 n Moles of KHP n=g/MW Moles of NaOH n(NaOH)=n(KHP) n(NaOH)=n(KHP)=0.50357 n Volume of NaOH (L) 15/1000=0.015 L Molarity of NaOH M= n/V 0.0050357n/0.015L=0.34 M Average molarity of NaOH 0.34+0.3359+0.3168=0.99/3=0.3 average Molarity Sample calculation:
3. Following a standardization reaction, the concentration of an aqueous solution of NaOH is determined to be 0.4510 M. a. What is the mass of NaOH in 50.0 mL of this solution? Show your work. b. What mass of KHP would be needed to completely react with 50.0 mL of this NAOH solution? Show your work.
Transcribed Image Text:3. Following a standardization reaction, the concentration of an aqueous solution of NaOH is determined to be 0.4510 M. a. What is the mass of NaOH in 50.0 mL of this solution? Show your work. b. What mass of KHP would be needed to completely react with 50.0 mL of this NAOH solution? Show your work.
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