Chemistry Chapter 7: Acid-Base Chemistry

Question 1

Log trick for pH

Answer 1

1) put concentration value into scientific notation
2) move decimal one to the left
3) positive value exponent - coefficient

Ie 0.003M

3 x 10^-3
0.3
3-0.3
pH = 2.7

Question 2

pI

Answer 2

The isoelectric point where the pH of an amino acid has no net charge (a zwitterion)

Question 3

zwitterion

Answer 3

is a molecule that has both positive and negative charges on different atoms but is overall electrically neutral