If the volumetric flask had a small amount of water in it from cleaning before y
ID: 512109 • Letter: I
Question
If the volumetric flask had a small amount of water in it from cleaning before you added the iron and o-phen solutions, how would this affect your measured absorbance of the complex formed? Would it make the apparent absorbance higher, lower, or have no effect? Explain briefly. If the cuvette had a small amount of residual water in it when you added the iron and o-phen, solution, how would this affect the measured absorbance? Would it make the apparent absorbance higher, lower, or have no effect? Explain briefly.Explanation / Answer
2) There won't be any effect in the absorbance. (The water used to wash the volumetric flask must be pure).
It doesn't matter because the final volume of solution and the concentration that we gonna make is going to be same even if volumetric flask has some water in the beginning.
3) It will make the absorbance lower than the actual value.
Measurement cuvette has some water means that our actual solution is going to be get diluted. Once we made a solution with a particular concentration there shouldn't be any change in the concentration until we take the measurements.