State what is the chemical definition of a buffer solution

Reference no: EM13174112

1. What is the chemical definition of a buffer solution? Give an example.

2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?

3. How many g of sodum benzoate, NaC7H5O2, should be mixed with 3.00 moles of benzoic acid, C7H5O2H, (Ka=6.5x10^-5) in a 5.0-L to make a solution that has a pH of 3.5?

4. Calculate the pH of a solution prepared by mixing 30.00 mL of a 0.15-M KOH solution with 50.00 mL of a .39-M HBr solution.

5. 45.0 mL of a 0.10-M formic acid (HCHO2, Ka=1.7x10^-4) solution was titrated with a 0.20-M NaOH solution. What is the equivalent volume? Calculate which is in excess.

6. What is the pH of the acidic solution before titration?

7. What is the pH of the reaction mixture (in Question 6) after 10.0 mL of NaOH was added?

8. What is the pH of the reaction mixture (titration in Question 6) at the equivalence point?

9. What is the pH of the reaction mixture (titration in Question 6) after 25.0 mL of base was added?

Reference no: EM13174112

Questions Cloud

State what is the value of i for the reaction : What is the value of Î"Go in kJ at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Use the reduction potentials for I2(s)

Which person will get to a state of zero accerlation first : a light woman and a heavy man jump from an airplance at the same time and open their same-size parachutes at the same time. which person will get to a state of zero accerlation first?

Discuss if the entrant is better off with or without ability : Consider now that the entrant, if fought, has the possibility of withdrawin from the industry (at a loss of 1 for the entrant and a gain of 8 for the incumbent), or staying (at a loss of 5 for each player).

Equal protection clause to legislation : Which of the following is NOT a guideline used by the Supreme Court to apply the equal protection clause to legislation?

State what is the chemical definition of a buffer solution : What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?

Calculate the number of molecules : Calculate the number of molecules in 37.0 mL of ethanol, CH3CH2OH. The density of ethanol is 0.789 g/mL.

Advertising and entertainment industry affect our autonomy : How do advertising and the entertainment industry affect our autonomy?

What is the cost-benefit analysis : A special interest group cannot impose its will on the majority because the perceived costs and benefits from government programs are the same for both groups. Cost-benefit analysis can be applied to individual decision-making and public choice th..

Compute the molarconcentration of oxygen : calculate the molarconcentration of oxygen in water at 25 celsius for a partialpressure of 0.23 atm. the henry's law constant for oxygen

User Account

All Pages