Uppose you perform a titration of an unknown weak acid solution. You start with 4.00 mL of the weak acid and find that it takes 12.8 mL of 0.0500 M NaOH to reach the equivalence point. What is the concentration of the unknown weak acid solution?

Explanation:

It is known that at the equivalence point,

     Equivalent of acid = equivalent of base ......... (A)

and,     Equivalent =

Therefore, equivalent of acid is calculated as follows.

     Equivalent of acid = .......... (1)

     Equivalent of base = ............ (2)

Hence, using equation (A) we will calculate the concentration as follows.

                       M = 0.16 M

Thus, we can conclude that concentration of the unknown weak acid solution 0.16 M.                    

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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