Suppose that a student doing this experiment ran into some procedural and calculation difficulties. State the effect each of the following would have on the calculated value of R determined from this experiment. Briefly explain. (1) After the reaction was completed, the student failed to withdraw the rod to its original position before taking the second buret reading. (2) The student neglected to take into account the pressure of water vapor in the system when doing the calculations. (3) The hydrogen peroxide solution had decomposed slightly after standing for a while, so its concentration

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Chemistry

Jimena Carpenter

19 May, 17:12

Suppose that a student doing this experiment ran into some procedural and calculation difficulties. State the effect each of the following would have on the calculated value of R determined from this experiment. Briefly explain. (1) After the reaction was completed, the student failed to withdraw the rod to its original position before taking the second buret reading. (2) The student neglected to take into account the pressure of water vapor in the system when doing the calculations. (3) The hydrogen peroxide solution had decomposed slightly after standing for a while, so its concentration

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Elaine · Answer 1

The only one i can make sense out of would be:

(1) " After the reaction was completed, the student failed to withdraw the rod to its original position before taking the second buret reading." this would affect the volume, since the rod is submerged in the solution, it would affect the reading (it would appear as a greater volume).