Question #8 Please show all work, thank you! 7. Calculate the pH of a buffer made with 50.0 mL of 0.200 M HA and 150.0 mL of 0.100 M NaA, if the Kafor this generic acid is 2.75×104.0.200 MOHAXILPCE50MLXHA + H₂0 H30⁰ + A HA0.050nol0.050-X0 0.075,0p01 150 ML NARX+ X+x= 0.050ndHA200,00ML0.160nolla 12,75 X10= 0.075200.00mIC-4 (X)(0+0750+1)=Nakx0.0750+X(0.050-x)0.0498X = -(2.75×10¹ +0.0150) +√(2_15410*40w73)³ +4(2-75x8) (0.850)PH = 3.741.822X10M 0.0748M28. If 2.00 mL of 1.00 M HCI is added to the buffer above, what is the resulting pH? X=1.822224507x10[HA] = 0+0498 [H38] = 080182 [A] = 0.01481.

The objective of the question is to determine the pH of the solution.It is given that,The volume of…

7. Calculate the pH of a buffer made with 50.0 mL of 0.200 M HA and 150.0 mL of 0.100 M NaA, if the K, for this generic acid is 2.75x10. 0.200 MOHA 1 HA + H₂0 H30² + A X IL 0.050ndl 1 C E -x 0.050-X 50MLX HA 0 0.075,0pol 150 ML NARX +x +X = 0.050nd 200.00ML 0.160nolak | X 2,75 X10 = 0.075 IE 200.00m - 4 (X) (0+0750+2) Nat 0.0750+X (0.050-x) 0.0498 X = -(2.75×10¹ +0.0150) +√ (2-75410*40675)² + 4(2-7555) (0.850 PH = 3.74 1.822X10M 010748M 2 8. If 2.00 mL of 1.00 M HCl is added to the buffer above, what is the resulting pH? X=1.822224507x10 [HA] = 0+0498 [138] =D=0182 [A] = 0.0748 M

7. Calculate the pH of a buffer made with 50.0 mL of 0.200 M HA and 150.0 mL of 0.100 M NaA, if the K, for this generic acid is 2.75x10. 0.200 MOHA 1 HA + H₂0 H30² + A X IL 0.050ndl 1 C E -x 0.050-X 50MLX HA 0 0.075,0pol 150 ML NARX +x +X = 0.050nd 200.00ML 0.160nolak | X 2,75 X10 = 0.075 IE 200.00m - 4 (X) (0+0750+2) Nat 0.0750+X (0.050-x) 0.0498 X = -(2.75×10¹ +0.0150) +√ (2-75410*40675)² + 4(2-7555) (0.850 PH = 3.74 1.822X10M 010748M 2 8. If 2.00 mL of 1.00 M HCl is added to the buffer above, what is the resulting pH? X=1.822224507x10 [HA] = 0+0498 [138] =D=0182 [A] = 0.0748 M

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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