[ixi]

the question is to calculate the equivalence point volume using concentration of 0.1 M HaOH solution, the concentration of HCl and the VHCl.

we used 0.1 M NaOH and HCl solutions

i calculated the concentration to be 0.03

http://www.chemicalforums.com/index.php?topic=19453.0

how would i find the equivalence point?

[Borek]

What is definition of equivalnce point?

[ixi]

it's when the amount of acid and base are the same

[Borek]

Ok. This is simple stoichiometric problem - start with the reaction equation. You know amount of one reactant, you need find amount of another. That's all.

[ixi]

so, do i find the concentration of NaOH?

[Borek]

so, do i find the concentration of NaOH?

Have you read the question? NaOH concentration is given, you are asked to calculate the volume.

[ixi]

i'm sorry, i'm just really confused about this problem


M1V1=M2V2
 
(100)(0.03) = (V2)(0.1)
V= 30 ml

[Borek]

Assuming volume of HCl used was 30 mL and both concentrations were identical (0.1M) your answer is correct

However, it looks to me like you have blindly used M₁V₁ = M₂V₂. Do you know why it works here - and why it could not work in others cases?