Examinations

sample of questions

1- what is the equivlance point of titration? the end point?

2- what are the four classes of titration?

3-what is standerd solution ? how is it prepare?

4-what are the requirements of a primary standerd?

5-a solution contains 6.0 micromole of Na2SO4 in 250 ml . how many ppm sodium does it contain?

6- calculate the ppm concentrations of 2.50 * 10^-4_{^{M solutions of CaCl}2?}