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A: What are the mandatory components required for column chromatography?
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Comment on the procedural differences of the gravimetric and volumetric analysis
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- 25 ml of pickled brine was taken from an apple pickled with vinegar and diluted to 500 ml, 25 ml of this was taken and acidity was determined with 0.2 N (Factor: 1.05) NaOH. In the main trials, 6.3 ml - 6.5 ml - 6.9 ml, respectively, 0.1 ml base was used in the analysis without using the sample.For example, how many ppm is its acidity?In analytical chemistry, when and why do we do representative sampling?Difference between gravimetry and volumetric methods
- In chromatography, the compound that is least soluble in the mobile phase a) Travels the furthest away from the line of origin b) Stays closest to the line of origin2. What is the basis for the separation of components of mixtures by paperchromatography?Which method of analysis generally is the faster method, gravimetric or volumetric? Why is that?
- How is spiking used in qualitative analysis? Why are several different types of columns necessary to make a convincing case for the identity of a compound?4. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value.What are the types of gravimetric methods? Give an examples where each method is used in an analysis.