The pKa of acetic acid, HC2H3O2, is 4.75. What is the pH of a buffer in which [HC2H3O2] = 2.0 M and [NaC2H3O2] = 0.20 M?
A) 3.75
B) 4.75
C) 5.75
D) 7.00
A
Environmental & Atmospheric Sciences
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If you had a 1 M solution of a weak base what would be its pH?
A. 1 B. 7 C. 6 D. 8 E. 13
Environmental & Atmospheric Sciences
Given the calculation: (7.22 x 10^-3 ) x (6.4 x 10^7 ) = ? What is the answer reported to the correct number of significant figures?
A) 4.6 x 10^5 B) 4.62 x 10^5 C) 4.620 x 10^5 D) 4.6208 x 10^5
Environmental & Atmospheric Sciences
The type of plate boundary at which many of the world's major metallic ore deposits are associated is ____________________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
During which season are the average winds aloft strongest?
A. fall B. winter C. summer D. spring
Environmental & Atmospheric Sciences