Which of the following statements is not correct for the titration carried out in Experiment 2?...
Which of the following statements is not correct for the titration carried out in Experiment 2?
| A. |
Oxalic acid is a primary standard |
|
| B. |
Mn is reduced from the +7 to the +2 oxidation state |
|
| C. |
the three concordant titre value must be within 0.05 mL |
|
| D. |
the concentration of oxalic acid must be exactly 0.05 mol L-1 |
Homework Answers
Oxalic acid is a primary standard as it's concentration does not change over time. Statement 1 is right
Mn is reduced from Mn+7 in KMnO4 to Mn+2 in MnSO4. Statement 2 is right.
Three concordant value should be obtained. Statement 3 is right.
The concentration of oxalic acid need not be exactly 0.05 mol/litre. The concentration can vary. It's just that you need to note the weight exactly and calculate the concentration to the exact point. Statement d is not true.
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Which of the following statements is not correct for the
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