Question

In an acid base titration, a base or acid is gradually added to the other until they have completely neutralized. pH is measured to monitor the reaction. Suppose the equivalent point is reached after 100 mL of NaOH solution is added to acetic acid, but that replicates are equally likely to indicate from 95 to 104 mL. Assume volumes are to nearest mL. Describe the sample space.
The sample space is S={95, 96, 97, 98, 99, 100, 101, 102, 103, 104}.
(a) What is the probability that equivalence is indicated at 100 mL? Because the replicates are equally likely to indicate from 95 to 104 mL.
(b) What is the probability that equivalence is less than 100 mL?
(c) What is the probability that equivalence is between 98 and 102 mL?

Answer 1

for part (a), there are 10 equally likely samples. what are the chances you get any one of them ?

Answer 2

or, if you had 10 cards, labeled 95,96... up to 104
what is the chance you pick the card labeled 100 ?

Answer 3

and could you hit the two other parts as well, and for part a the answer is 1/10? right

Answer 4

@phi