Which substance could you add to each solution to make it a buffer solution? 0.100 M NaC2H3O2 0.500 M H3PO4 0.200...
Which substance could you add to each solution to make it a buffer solution?
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0.100 M NaC2H3O2
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0.500 M H3PO4
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0.200 M HCHO2
Can you include an explanation with this as well please? Thanks!
Homework Answers
Buffer is the solution which resists change in the pH of solution after addition of acid or base. it has role in chemical and biochemical processes where the control of pH is very important
Buffer is a mixture of a weak acid and its conjugate base. It is a kind of acid base pair.
The change in concentration of hydronium ion in solution by addition of small amount of acid or base is balanced by forward and backward reaction triggered by conjugate base/ conjugate acid. Hence to make a buffer from acid we look for ts conjugate base or vice versa. OR We can say A buffer must have an acid/base conjugate pair, following compounds are co jugate acid or base pair of given compounds
1. HC2H3CO2 ( conjugate acid of given base)
2. NaH2PO4 (conjugate base of given acid)
3 NaCHO2 conjuagte bas of given acid
Add Answer to:
Which substance could you add to each solution to make it a buffer solution? 0.100 M NaC2H3O2 0.500 M H3PO4 0.200...
2. (2 pts) Which substance could you add to each solution to make it a buffer...
2. (2 pts) Which substance could you add to each solution to make it a buffer solution? b. 0.050 M HF C. 0.050 M CH3COOH 3. (2 pts) Calculate the concentration of H30+ and OH-in a 1.5 M HCl solution. 4. (2 pts) What are the products of the following acid-base reaction: CH3NH2 (aq) + H2SO4 (aq) 5. (7 pts) A 10.0 ml sample of an unknown H3PO4 solution requires 112 ml of 0.100 M KOH to completely react with...
I 2. (2 pts) Which substance could you add to each solution to make it a...
I 2. (2 pts) Which substance could you add to each solution to make it a buffer solution? b. 0.050 M HF C. 0.050 M CH3COOH
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Calculate [H30+] for each solution given its pH. •pH=1.66 •pH=3.98 •pH=8.93 •pH=12.22 What substance could you add to each solution to make it a buffer solution? • 0.050 M NaHSO3 • 0.150 M HF • 0.200 M KCHO2
a) Calculate the pH of 0.500 L of a buffer solution that contains 0.200 M of...
a) Calculate the pH of 0.500 L of a buffer solution that contains 0.200 M of benzoic acid C6H5CO2H and 0.100 M sodium benzoate NaC6H5CO2. Ka = 6.3 x 10-5. b) Calculate the pH after .10 mL of 1.00 M H+ has been added. c) Calculate the pH after 10 mL of 1.00 M OH- has been added.
To make a 0.500 M solution, one could take 0.500 moles of solute and add.... choose...
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3. You are asked to make a buffer solution with a pH of 3.40 by using 0.100 M HNO, and 0.100 M NaOH (aq). a. Explain why the addition of 0.100 M HNO2 to 0.100 M NaOH(aq) can result in the formation of a buffer solution. Include the net ionic equations for the reaction that occurs when you combine HNO2 (aq) and NaOH(aq). Determine the volume, in ml, of 0.100 NaOH(aq) the student should add to 100 mL of 0.100...
You are given 2.0 L of a buffer solution that contains 0.220 M acid (pka- 3.50)...
You are given 2.0 L of a buffer solution that contains 0.220 M acid (pka- 3.50) and 0.200 M of conjugate base. A. What is the pH of the buffer? B. What volume of 0.500 M solution of HCI would you need to add to make the pH of the buffer solution 3.00?
A) Which of the following pairs cannot be mixed together to form a buffer solution? Why?...
A) Which of the following pairs cannot be mixed together to form a buffer solution? Why? A. NH3, NH4Cl B. KOH, HF C. NaC2H3O2, HCl D. H3PO4, KH2PO4 E. RbOH, HCl I already know the answer is E. I want help understanding when we can rule out choices B and C. B) For a solution equimolar in HCN and NaCN, which statement is false? Without giving all the choices, the false choice is "The [H+] is larger than it would...
For HF Pka=3.45 What is the pH of an aqueous buffer solution that is 0.100 M...
For HF Pka=3.45 What is the pH of an aqueous buffer solution that is 0.100 M HF and 0.300 M KF (aq) Please give answer as well as detailed instructions. Thanks!!!
a. How much solid NaNO2 should you add to a solution of 850. mL of 0.200...
a. How much solid NaNO2 should you add to a solution of 850. mL of 0.200 M HNO2 to make a buffer with pH = 2.99? (The K. of HNO2 is 7.2 x 10) b. If you wanted to change the buffer solution you made in part (a) to solution with a buffer of pH = 4.10, what would you add, a strong acid or base? c. Pouradd-5.00 mt of 8.00 MHE to the solution: What is the new pH?...
2. (2 pts) Which substance could you add to each solution to make it a buffer solution? b. 0.050 M HF C. 0.050 M CH3COOH 3. (2 pts) Calculate the concentration of H30+ and OH-in a 1.5 M HCl solution. 4. (2 pts) What are the products of the following acid-base reaction: CH3NH2 (aq) + H2SO4 (aq) 5. (7 pts) A 10.0 ml sample of an unknown H3PO4 solution requires 112 ml of 0.100 M KOH to completely react with...
I 2. (2 pts) Which substance could you add to each solution to make it a buffer solution? b. 0.050 M HF C. 0.050 M CH3COOH
3. You are asked to make a buffer solution with a pH of 3.40 by using 0.100 M HNO, and 0.100 M NaOH (aq). a. Explain why the addition of 0.100 M HNO2 to 0.100 M NaOH(aq) can result in the formation of a buffer solution. Include the net ionic equations for the reaction that occurs when you combine HNO2 (aq) and NaOH(aq). Determine the volume, in ml, of 0.100 NaOH(aq) the student should add to 100 mL of 0.100...
You are given 2.0 L of a buffer solution that contains 0.220 M acid (pka- 3.50) and 0.200 M of conjugate base. A. What is the pH of the buffer? B. What volume of 0.500 M solution of HCI would you need to add to make the pH of the buffer solution 3.00?
a. How much solid NaNO2 should you add to a solution of 850. mL of 0.200 M HNO2 to make a buffer with pH = 2.99? (The K. of HNO2 is 7.2 x 10) b. If you wanted to change the buffer solution you made in part (a) to solution with a buffer of pH = 4.10, what would you add, a strong acid or base? c. Pouradd-5.00 mt of 8.00 MHE to the solution: What is the new pH?...
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