Weak Acods strong bases and strong acids

Question 1

Why can’t we assume that acid is h+

Answer 1

As weak acids only slightly dissociate and we cannot assume that the h+ concentration is the same as the acid concentration

Question 2

What is the weak acid equation

Answer 2

Ka = h*a/ ha

Ha >h +a

Question 3

What does a large ka suggest

Answer 3

Stronger acid as more dissociation

Question 4

When strong acid and strong base the first thing you do

Answer 4

Calculate the mould of the acid and the mild of the base and find which one is in excess

Question 5

What if acid is in excess

Answer 5

You use h+ and logph directly

Question 6

What if strong base is in excess

Answer 6

We use the kw = h(oh)

Question 7

When we have a weak acid and a strong base and oh is in excess what do we use

Answer 7

We use kw to find h+ and then we use this to find the ph

Question 8

When we have strong base and weak acid and acid is in excess what do we use

Answer 8

We use ka= h)a)/ ha

Question 9

When do we use ph=pls

Answer 9

When the moms of ha = a-