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QUESTION 32 A chemist needs to determine the concentration of an unknown monoprotic acid. To do this, the chemist first needs to standardize a solution of sodium hydroxide (NaOH). Using the primary standard potassium hydrogen phthalate (KHP 204.22 g/mol), the chemist weighs 0.47g of KHP into an Erlenmeyer flask. How many moles of KHP are in the flask?

QUESTION 32 A chemist needs to determine the concentration of an unknown monoprotic acid. To do this, the chemist first needs to standardize a solution of sodium hydroxide (NaOH). Using the primary standard potassium hydrogen phthalate (KHP 204.22 g/mol), the chemist weighs 0.47g of KHP into an Erlenmeyer flask. How many moles of KHP are in the flask?

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
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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b) What is the mass percent sänd in this sample? For the toolbar, press ALT-F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 14px A 9 Q0 田回 田田 50三三 山加面向 困 由田田 QUESTION 32 A chemist needs to determine the concentration of an unknown monoprotic acid. To do this, the chemist first needs to standardize a solution of sodium hydroxide (NAOH). Using the primary standard potassium hydrogen phthalate (KHP 204.22 g/mol), the chemist weighs 0.47g of KHP into an Erlenmeyer flask. How many moles of KHP are in the flask? QUESTION 33 After dissolving the KHP with a small amount of water and adding the indicator. phenolphthalein, the chemist uses a burette to add the unknown concentration of NaOH solution to the KHP solution in the flask. How will the chen For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). x X, Paragraph Arial 14px A V 田田 EXE SA HE E <> QUESTION 34 The starting volume for NaOH solution in the burette was measured to be 17.13mL. Once the titration was complete, the burette reading was 30.82mL. What volume of NAOH was used? Click Saue and Submit to save and subm it. Click Save Al Answers to sape all answers.
Transcribed Image Text:b) What is the mass percent sänd in this sample? For the toolbar, press ALT-F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 14px A 9 Q0 田回 田田 50三三 山加面向 困 由田田 QUESTION 32 A chemist needs to determine the concentration of an unknown monoprotic acid. To do this, the chemist first needs to standardize a solution of sodium hydroxide (NAOH). Using the primary standard potassium hydrogen phthalate (KHP 204.22 g/mol), the chemist weighs 0.47g of KHP into an Erlenmeyer flask. How many moles of KHP are in the flask? QUESTION 33 After dissolving the KHP with a small amount of water and adding the indicator. phenolphthalein, the chemist uses a burette to add the unknown concentration of NaOH solution to the KHP solution in the flask. How will the chen For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). x X, Paragraph Arial 14px A V 田田 EXE SA HE E <> QUESTION 34 The starting volume for NaOH solution in the burette was measured to be 17.13mL. Once the titration was complete, the burette reading was 30.82mL. What volume of NAOH was used? Click Saue and Submit to save and subm it. Click Save Al Answers to sape all answers.
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