State physiological compounds that resist a change in ph

Assignment Help Chemistry

Reference no: EM13184268

What is the pH of a solution prepared by mixing 200 ml of 0.1 M HCl with 300 ml of 0.1 M sodium acetate and diluting the mixture to 1 L? The pKa of acetic acid is 4.76

Buffers are important physiological compounds that resist a change in pH. Calculate the pH of system that is 0.25 M benzoic acid and 0.75 M benzoate if the pKa = 4.2.

If 5 ml of 0.1 M NaOH (a strong base) is added to 100 ml of 0.05 M phosphate buffer (phosphoric acid = H3PO4), pH 7.1, what is the resulting pH? Ignore the volume change. Clearly identify the appropriate acid and conjugate base and determine their concentrations in the final solution.

What would the resulting pH be if instead you added 5 ml of 0.25 M HCl? (Ignore the volume change).

Reference no: EM13184268

Questions Cloud

Dural folds is mismatched with its location : Which of these dural folds is mismatched with its location?

Evaluate in order to compute the avg value : The following questions pertain to the magnitude of the x-component of the speed(absolute value of the velocity) cx=|vx| of atoms in a gas, whose probability distriubution has the form P(cx)= ae^-bc2/x.

Communicate electronically rather than in person : Why did you choose to communicate electronically rather than in person? Why was the experience positive or negative? How do the components and processes of communication apply to the electronic/computer channel?

Why would the govt impose a price which losses of efficiency : Explain the concepts of consumer surplus and producer surplus, and then use these to demonstrate that a price ceiling is less efficient than equilibrium in a supply and demand analysis. Articulate why the price ceiling results in either a shortage..

State physiological compounds that resist a change in ph : Buffers are important physiological compounds that resist a change in pH. Calculate the pH of system that is 0.25 M benzoic acid and 0.75 M benzoate if the pKa = 4.2.

Should you admit you have been fired from a job : Should you admit you have been fired from a job? If so, how much information should you provide? Please cite url or references used for class discussion and answer in 140 words or less.

State translational and rotational degrees of freedom : Given that translational and rotational degrees of freedom typically behave classically, but vibrations behave quantum mechanically, the total (avg) energy of a diatomic is predicted to be U= (5/2)RT+ , where is obtained from Eq.124.

Prepare an income statement using single-step form : Prepare an income statement, using the single-step form, and a statement of owner's equity using the data (below) from the ledger of Morrison Co. after adjustment at September 30, 2011

State distillation apparatus have atmospheric pressure : Why is it important that your distillation apparatus to have a vent to atmospheric pressure and why do you put a boiling chip

User Account

All Pages