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Answer all calculation questions to the correct number of significant figures. 1. A flask contains 0.015 mol of HCl in 10.0 mL of solution. a. What is the molarity of the HCl solution? b. In a titration with NaOH, how many moles of NaOH will be required to reach the end point? c. If 12.5 mL of NaOH are required to reach the end point, what is the molarity of the NaOH solution? d. What must be added to the HCl solution in order to observe the end point? A student places 20.00 mL of 0.1005 M HC1 in a flask and adds a few drops of phenolphthalein. She adds a NaOH solution of unknown molarity to a buret and records the initial reading as 1.50 mL. She adds the NaOH solution from the buret to the HCl solution until a pale pink color is obtained and records the final buret reading as 22.00 mL. What is the molarity of the NaOH solution? Show your calculations. 2. 53

Answer all calculation questions to the correct number of significant figures. 1. A flask contains 0.015 mol of HCl in 10.0 mL of solution. a. What is the molarity of the HCl solution? b. In a titration with NaOH, how many moles of NaOH will be required to reach the end point? c. If 12.5 mL of NaOH are required to reach the end point, what is the molarity of the NaOH solution? d. What must be added to the HCl solution in order to observe the end point? A student places 20.00 mL of 0.1005 M HC1 in a flask and adds a few drops of phenolphthalein. She adds a NaOH solution of unknown molarity to a buret and records the initial reading as 1.50 mL. She adds the NaOH solution from the buret to the HCl solution until a pale pink color is obtained and records the final buret reading as 22.00 mL. What is the molarity of the NaOH solution? Show your calculations. 2. 53

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
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#1. a b c and d 

Answer all calculation questions to the correct number of significant figures. 1. A flask contains 0.015 mol of HCl in 10.0 mL of solution. a. What is the molarity of the HCl solution? b. In a titration with NaOH, how many moles of NaOH will be required to reach the end point? c. If 12.5 mL of NaOH are required to reach the end point, what is the molarity of the NaOH solution? d. What must be added to the HCl solution in order to observe the end point? A student places 20.00 mL of 0.1005 M HC1 in a flask and adds a few drops of phenolphthalein. She adds a NaOH solution of unknown molarity to a buret and records the initial reading as 1.50 mL. She adds the NaOH solution from the buret to the HCl solution until a pale pink color is obtained and records the final buret reading as 22.00 mL. What is the molarity of the NaOH solution? Show your calculations. 2. 53
Transcribed Image Text:Answer all calculation questions to the correct number of significant figures. 1. A flask contains 0.015 mol of HCl in 10.0 mL of solution. a. What is the molarity of the HCl solution? b. In a titration with NaOH, how many moles of NaOH will be required to reach the end point? c. If 12.5 mL of NaOH are required to reach the end point, what is the molarity of the NaOH solution? d. What must be added to the HCl solution in order to observe the end point? A student places 20.00 mL of 0.1005 M HC1 in a flask and adds a few drops of phenolphthalein. She adds a NaOH solution of unknown molarity to a buret and records the initial reading as 1.50 mL. She adds the NaOH solution from the buret to the HCl solution until a pale pink color is obtained and records the final buret reading as 22.00 mL. What is the molarity of the NaOH solution? Show your calculations. 2. 53
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