Do you remember the experiment to investigate rate of reaction. You put an X on a paper and put on it a beaker ...
The purpose of this expt. is to investigate the effect of concentrations of H2O2 solutions on the rate...
By means of mass spectrometer. Mainly, we should investigate the intensity of the spot of each isotope contributed to determine the relative abundance in each mineral.
Theory : the concentration of salt in sea water affect the saltiness of it, by investigating the concentration of salt in the sample, we could determinate which sample is more "...
There are two kinds of catalyst : positive catalyst and negative catalyst The postive catalyst can increase the rate of the reaction while the negative catalyst can slow down the reaction rate. The catalyst provides an alternative pathway of reaction mechanism which involves a...
...example of producing orange juice. A chemist working in the laboratory investigates and discovers a multitude of pathways to extract the juice of an orange...
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First , find the concentration of ascorbic acid solution. Then, 1. Heating factor put the ascorbic acid solution to the water bath for 5 min. then use tritation method to investage the concentration of the solution, calculate the lost ratio in second or minutes or hour. PS nowaday, the vitamin...
(a) The temperature of water determines the solubility of water (i) i.e. the Independent variable: Temperature of water (ii) The amount of water for each beaker, time allowed, amount of sugar added, the type of sugar used, etc. (iii) i.e. the...
