a. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC, H, O2 to produce a solution buffered at pH = pK,. K.(HC,H,O,) = 1.8 x 10-5 Number of moles- mol b. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC, H,O2 to produce a solution buffered at pH = 4.20. K.(HC, H3O2) 1.8 x 10- Number of moles- mol c. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC, H3 O2 to produce a solution buffered at pH = 5.00. K.(HC, H,O2) - 1.8 x 10-6 Number of moles- mol

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Chapter1: Chemical Foundations
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a. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC,H,O2 to produce a solution buffered
at pH = pK,.
K.(HC,H3O2)
1.8 x 10-5
%3D
Number of moles=
mol
b. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC, H,O2 to produce a solution buffered
at pH = 4.20.
K. (HC,H3O2)
= 1.8 x 10-5
Number of moles
mol
c. Calculate the number of moles of HCl(9) that must be added to 1.0 L of 1.3 M NaCzH3O2 to produce a solution buffered
at pH = 5.00.
K.(HC,H3O2)
1.8 x 10-6
%3D
Number of moles =
mol
Transcribed Image Text:a. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC,H,O2 to produce a solution buffered at pH = pK,. K.(HC,H3O2) 1.8 x 10-5 %3D Number of moles= mol b. Calculate the number of moles of HCI(9) that must be added to 1.0 L of 1.3 M NaC, H,O2 to produce a solution buffered at pH = 4.20. K. (HC,H3O2) = 1.8 x 10-5 Number of moles mol c. Calculate the number of moles of HCl(9) that must be added to 1.0 L of 1.3 M NaCzH3O2 to produce a solution buffered at pH = 5.00. K.(HC,H3O2) 1.8 x 10-6 %3D Number of moles = mol
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