Chemistry Help on Buffers

timer Asked: Apr 4th, 2016

Question description

Hi! I need help on a problem and its solutions. 

Prepare a 500 ml 0.20 M buffer of ph 7 given that the only available reagents are Na3AsO4 x 7H2O (FW: 333.99g/mol0, 1.0 M NaOH and 1.0 M HCl. (Ka1=5.8 x 10^-3, Ka2= 1.1x10^-7, Ka3=3.2x 10^-12)

a.) Calculate the moles of the acidic and basic components of the buffer at the desired pH.

b.) Calculate the weight or volume of the appropriate reagents needed to prepare the buffer.

c.) Is the prepared buffer better in handling pH changes due to acids and bases? Explain your answer.

Tutor Answer

(Top Tutor) Studypool Tutor
School: Purdue University
Studypool has helped 1,244,100 students
flag Report DMCA
Similar Questions
Hot Questions
Related Tags

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