hw7due030810 - and the pH at the stoichiometric point. Draw...

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Due Monday March 8 Prof. William Casey Name_________________________________________ Chemistry 2B, Winter 2010 Student ID Number______________________ Homework 7 Lab TA Name and Time______________________ Instructions: Show all of your work in addition to your answer to the following questions on a separate piece of paper. Put your name on this and all pages, staple your work to this page, and turn it in to your TA’s mailbox by 5 PM on Monday March 8, 2010 . (1) The stoichiometric point during the titration of 10.0 mL of an HCl solution ocurrs when 28.5 mL of 0.1 M NaOH is added. Calculate the initial concentration of the HCl solution. Calculate the pH of the HCl solution prior to adding NaOH, the pH at the halfway point,
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Unformatted text preview: and the pH at the stoichiometric point. Draw the titration curve with pH on the y axis and volume of NaOH added on the x axis. Label this curve with the pHs calculated above and the appropriate volumes of added NaOH. (2) The stoichiometric point during the titration of 10.0 mL of an NH 3 solution ocurrs when 28.5 mL of 0.1 M HCl is added. Calculate the initial concentration of the NH 3 solution. Calculate the pH of the NH 3 solution prior to adding HCl, the pH at the halfway point, and the pH at the stoichiometric point Draw the titration curve with pH on the y axis and volume of HCl added on the x axis. Label this curve with the pHs calculated above and the appropriate volumes of added HCl....
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This note was uploaded on 06/13/2010 for the course CHEM 995940767 taught by Professor Topadakis during the Spring '10 term at UC Davis.

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