One liter of 0.1 m tris buffer is prepared and adjusted to ph of 8.2.
(a) write the equation o...
Chemistry, 02.10.2019 22:00 destinytofell4630
One liter of 0.1 m tris buffer is prepared and adjusted to ph of 8.2.
(a) write the equation of the acid dissociation of tris-hcl identifying the weak acid and the conjugate base in your equation. (the structure of tris-hcl salt is shown on the lecture slides and pka=8.30).
(b) what is the effective buffering range of a tris buffer?
(c) what are the concentrations of the conjugate acid and weak base at ph=8.2?
(d) what is the ratio of conjugate base to weak acid if 1.5 ml of 3.0 m hcl is added to 1.0 l of the buffer? what is the new ph? has the buffer functioned effectively? compare the ph change to that of problem 9a in which the same amount of acid was added to the same volume of pure water.
(e) what is the ratio of conjugate base to weak acid if 1.5 ml of 3.0 m naoh is added to 1.0 l of the buffer? what is the new ph? has the buffer functioned effectively? compare the ph change to that of problem 3b in which the same amount of base was added to the same volume of pure water.
Answers: 2
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 05:00, pandasarecute53
If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax
Answers: 1
Chemistry, 22.06.2019 18:30, bibiansolis
The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.
Answers: 3
Chemistry, 22.06.2019 23:40, tilievaughn14
What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.
Answers: 1
You know the right answer?
Questions in other subjects:
Spanish, 09.04.2021 05:10
Chemistry, 09.04.2021 05:10
Mathematics, 09.04.2021 05:10
