Answer number 3 only = 6.7 x 10-4 is 3.5% ionized when 100 g of it is dissolved in 1L.1. A monoprotic organic acid with a KaWhat is the formula weight of the acid?g/mol2. Calculate the pH of a 1.0 x 10-4 M of NaCN3. Calculate the pH of a 0.600 M solution of Na2S4. What mass of sodium formate must be added to 500.0 ml of 1.00 M formic acid to produce a buffersolution that has a pH of 3.50?

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3. Calculate the pH of a 0.600M solution of Na2S

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 124QRT

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Answer number 3 only

= 6.7 x 10-4 is 3.5% ionized when 100 g of it is dissolved in 1L.
1. A monoprotic organic acid with a Ka
What is the formula weight of the acid?
g/mol
2. Calculate the pH of a 1.0 x 10-4 M of NaCN
3. Calculate the pH of a 0.600 M solution of Na2S
4. What mass of sodium formate must be added to 500.0 ml of 1.00 M formic acid to produce a buffer
solution that has a pH of 3.50?

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