Suppose you are titrating vinegar, which is an acetic acid solution, of unknown strength with sodium hydroxide according to the equation HC2H3O2 + NaOH → H2O + NaC2H3O2 If you require 32.17 mL of 0.116 M NaOH solution to titrate 10.0 mL of HC2H3O2 solution, what is the concentration of acetic acid in the vinegar? (M)

0.373 M

Explanation:

The reaction is

So 1 mol of acetic acid reacts with 1 mol of sodium hydroxide.

First we calculate the moles of NaOH:

Because the stoichiometric ratio is 1:1 :

Now we calculate the concentration of acetic acid, dividing the moles by the volume:

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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