oncordant value (V2)= …………….. ml
EXPERIMENT: DETERMINATION OF THE AMOUNT OF HYDROCHLORIC ACID IN THE GIVEN SOLUTION
Aim: To determine the amount of Hydrochloric Acid in the given solution.
Apparatus & Chemicals: 0.1 N, 100 ml Oxalic acid solution, HCL, NaOH, Distilled Water
Phenolphthalein indicator, Volumetric Flask 100ml, Funnel, Spatula, Watch glass, Conical Flask, Measure Cylinder 10ml, Burette, Weighting balance
Theoretical background: …………..
Observations:
Standardization of NaOH
|
Sl. No |
Volume of Oxalic acid (V1) |
Initial burette reading |
Final burette reading |
Volume of NaOH used |
|
1 |
10 |
0.0 |
9.9 |
9.9 |
|
2 |
10 |
9.9 |
19.9 |
10.0 |
|
3 |
10 |
19.9 |
29.9 |
10.0 |
Concordant value (V2)= …………….. ml
Estimation of HCl
|
Sl. No |
Volume of HCl (V4) |
Initial burette reading |
Final burette reading |
Volume of NaOH used |
|
1 |
10 |
0.0 |
8.9 |
8.9 |
|
2 |
10 |
8.9 |
17.9 |
9.0 |
|
3 |
10 |
17.9 |
26.9 |
9.0 |
Concordant value (V3) = …………….. ml
Calculations:
Mass of Oxalic acid (H2C2O4) =………….
Normality of H2C2O4 solution (N1) = 0.1 N
Standardization of NaOH:
N1V1 ((H2C2O4) = N2 V2 (NaOH)
Normality of NaOH, N2 =…………………
*N3V3 (NaOH) = N4V4 (Unknown HCl) [* N3 = N2 because same NaOH is being used in both titration]
Normality of HCl, N4 =……………………
Amount of HCl in g /L = N4 * Equivalent weight of HCl =……………………..
Result & discussion
Precautions:
References:
Step by step
Solved in 2 steps
