Acids and Bases

Question 1

1M of HCl dissociates. What is the molar concentration of H+ and Cl- that have dissociated?

Answer 1

1M H+

1M Cl-

Question 2

The effect of concentrated solution on dissociation of acids and bases

Answer 2

% dissociation of acid or base decreases with increase in concentration of the solution

As the acidity of the solution increases, % dissociation of acid decreases

Question 3

relationship between acid strength and acid concentration

Answer 3

acid strength increases with acid concentration

Question 4

What does a greater acid strength mean?

Answer 4

it means it have a greater concentration of H+ ions, more H+ ions that have dissociated regardless of percentage of dissociation

Question 5

what is the trend of acidity of binary hydrides across the periodic table?

Answer 5

the acidity of hydrides tend to increase right and down, toward the HI

the basicity increases the other way to the left and up

Question 6

How can the dissociation constant be altered?

Answer 6

change in temperature

Question 7

water dissociation constant

Answer 7

Kw = 10^-14

Question 8

pH + pOH equations

Answer 8

pH + pOH = 14

pH + pOH = pKw

Question 9

pKa + pKb equations

Answer 9

pKa + pKb = pKw

pKa + pKb = 14

Question 10

How to find the pH of a weak acid

Answer 10

Use the Ka constant