help letter D pls A. Write all the equilibrium reactions with the corresponding equilibrium constant values for adiprotic acid, H;S in an aqueous solution. Ka, = 9.5 x 10 Kaz =1.3 x 1014B. Given the following compounds: H;S (34.065); NaHS (56.065); Na,S (78.065), calculatethe pH of a buffer solution (with a usable pH range) prepared by mixing 1.00 g of the acidand 1.200 g of its conjugate base and diluting to 1.00 L.c. Calculate the new pH of the buffer solution in (b) if 5.00 mL of 1.07 M HCl were added tothe buffer prepared in (B).D. In a laboratory where NaHS and HCI are the only available reagents, how many mL of1.00 M HCl should be added to a 50.0 ml solution containing 1.00 mmol of NaHS to give abuffer solution with a pH of 7.022.

Answered: Image /qna-images/answer/bed1ff1d-375b-48f5-8961-e4c3308ead14.jpg

D. In a laboratory where NaHS and HCl are the only available reagents, how many mL of 1.00 M HCl should be added to a 50.0 mL solution containing 1.00 mmol of NaHS to give a buffer solution with a pH of 7.022.

D. In a laboratory where NaHS and HCl are the only available reagents, how many mL of 1.00 M HCl should be added to a 50.0 mL solution containing 1.00 mmol of NaHS to give a buffer solution with a pH of 7.022.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section14.9: Lewis Acids And Bases

Problem 14.26E

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Question

help letter D pls

A. Write all the equilibrium reactions with the corresponding equilibrium constant values for a
diprotic acid, H;S in an aqueous solution. Ka, = 9.5 x 10 Kaz =1.3 x 1014
B. Given the following compounds: H;S (34.065); NaHS (56.065); Na,S (78.065), calculate
the pH of a buffer solution (with a usable pH range) prepared by mixing 1.00 g of the acid
and 1.200 g of its conjugate base and diluting to 1.00 L.
c. Calculate the new pH of the buffer solution in (b) if 5.00 mL of 1.07 M HCl were added to
the buffer prepared in (B).
D. In a laboratory where NaHS and HCI are the only available reagents, how many mL of
1.00 M HCl should be added to a 50.0 ml solution containing 1.00 mmol of NaHS to give a
buffer solution with a pH of 7.022.

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