pH and Buffer lab experiment

Sigchi4life
Category:
Chemistry
Price: $5 USD

Question description

Develop a recipe to make 50 mL of a buffer from assorted chemicals available. Create a buffer by using TWO of the following reagents:

NaHCO3 , 0.10 M HCl, NaH2O4, 0.10 M NH3, NH4Cl, NaHPO4, NaC2H3O2, Na2CO3.

Create a buffer with a pH greater than 7.0

Carefully select TWO reagents to use for the buffer, determine how much of each reagent to use in order to achieve a concentration between 0.01 M and 0.50 M. You will need to indicate what the desired concentrations of the 2 reagents are. The calculations of its pH will need to be done to verify it falls in the proper range.

**DO NOT randomly choose 2 reagents to add together. Remember that a buffer must contain a weak acid and its conjugate base.

Use the Henderson-Hasselbalch equation to calculate the theoretical pH of your buffer, based on the desired concentrations you plan to achieve. Show work!!

Tutor Answer

(Top Tutor) Daniel C.
(997)
School: University of Virginia
PREMIUM TUTOR
Studypool has helped 1,244,100 students
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1819 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors