Question

In: Chemistry

Decide which of the following combinations will result in a buffering solution, and which will not...

Decide which of the following combinations will result in a buffering solution, and which will not when equal volumes of each are mixed.

1.65 M HIO + 0.825 M SrO

1.33 M HClO4 + 0.665 M C2H5NH2

1.27 M HNO2 + 0.635 M NH3

1.91 M HCl + 0.955 M NaOH

1.69 M HIO + 0.845 M CsOH

Solutions

Expert Solution

A buffer solution will always contain a weak acid and its conjugate base (or a weak base and its conjugate acid) in similar quantities. The two components can be combined directly or one can be generated from the other with the addition of a strong acid or base.

1) Yes, HIO is a weak acid and SrO is a weak base

2) NO, HClO4 is a strong acid

3) Yes, HNO2 is a weak acid and NH3 is a weak base

4) NO, strong acid and strong base

5) NO, CsOH is a strong base


Related Solutions

Determine which of the following polymers are the result of polymerization, and which are the result...
Determine which of the following polymers are the result of polymerization, and which are the result of post-polymerization processing. Explain! 1. low density polyethylene 2. high density polyethylene 3. phenol-formaldehyde 4. heavily cross-linked polyisoprene (glass trans. temp: 50C) 5. lightly cross-linked polyisoprene (glass trans. temp: -60C)
9. Which of the following solutions has the greatest buffering capacity?    [A] 0.243 M HF...
9. Which of the following solutions has the greatest buffering capacity?    [A] 0.243 M HF and 0.192 M NaF    [B] 0.485 M HF and 0.383 M NaF    [C] 0.970 M HF and 0.766 M NaF    [D] 0.160 M HF and 0.126 M NaF      [E] They are all buffer solutions and would all have the same capacity.    10. The Henderson-Hasselbalch equation is ________    [A] pH = pKa + log [acid]/[base]    [B] [H+] =...
four light bulbs arr to be connected in a house. which of the following combinations will...
four light bulbs arr to be connected in a house. which of the following combinations will make the bulb glow highest? a. all 4 parallel b. 2 in series and 2 in parallel c. all 4 in series d. one in series and 3 in parallel
1) Which of the following combinations of changes in supply and demand (listed in the same...
1) Which of the following combinations of changes in supply and demand (listed in the same order) is likely to cause an indeterminate change in quantity? Multiple Choice Decrease/Decrease Increase/Decrease Increase/Increase Static/Decrease 2) A government set minimum wage: Multiple Choice imposes a legal ceiling above the wage of the least skilled worker. is one of the reasons why price level falls during recessions. imposes a legal floor under the wage of the most skilled worker. imposes a legal floor under...
Which of the following 1.0 L mixtures has the greatest buffering capacity? A 0.1 M NH4Cl...
Which of the following 1.0 L mixtures has the greatest buffering capacity? A 0.1 M NH4Cl +0.2 M NH3 B 1.0 M NH4Cl + 0.1 M NH3 C 0.2 M NH4Cl +0.8 M NH3 D 1.0 M NH4Cl + 1.2 M NH3 Arrange the following mixtures of buffer solutions in an increasing order of their pH values. Drag and drop to order 1 A 0.10 M KF/0.10 M HF 2 B 0.20 M KF/0.10 M HF 3 C 0.10 M...
Select all combinations of chemical reagents which make buffer solution(s). NH3 & KOH HCN & HCl...
Select all combinations of chemical reagents which make buffer solution(s). NH3 & KOH HCN & HCl HCl & HCN KCN & NaOH KOH & HBr HCN & KCN HCl & NaOH
Which of the following combinations of events likely lead to the stagflation that occured in the​1970's?...
Which of the following combinations of events likely lead to the stagflation that occured in the​1970's? A. A major decrease in oil price and the removal of price controls. B. A major increase in oil price and the removal of price controls. C. A major increase in oil price and the implementation of price controls. D. A major decrease in oil price and the implementation of price controls.
Which of the following combinations of quantum numbers do not represent permissible solutions of the Schrödinger...
Which of the following combinations of quantum numbers do not represent permissible solutions of the Schrödinger equation for the electron in the hydrogen atom (i.e., which combination of quantum numbers is not allowed)? n l ml s(or ms) a. 6 5 -5 1/2 b. All are allowed. c. 6 -5 –1 1/2 d. 8 2 2 1/2 e. 9 8 -4 1/2
1.Which of the following is a likely explanation for inefficient production combinations? There are idle resources...
1.Which of the following is a likely explanation for inefficient production combinations? There are idle resources such as labor and capital not being put to production uses There is an inefficient allocation of resources with some labor and capital allocated to fish production that would be better suited for bread production Both A and B are likely explanations Neither A nor B is a likely explanation 2.Which of the following is a measure of a country’s productive capacity relative to...
Which of the following would be the result of increasing the temperature at which GC is...
Which of the following would be the result of increasing the temperature at which GC is run? I knew this would cause a faster elution time because temperature increases kinetic energy but I am not sure how this results in poorer seperation. Can you explain what it means by "seperation" . I watched videos on the Gas Chromatography but I am not clear on how things are seperated----i thought that the more volatile will adhere less to the liquid stationary...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT