Forensic scientists can compare DNA found at a crime scene (from blood or hair, for example) to DNA samples taken from suspects. If there is no match, they may be able to rule out that suspect. If there is a match, police will likely want to take a closer look.
Explanation:
The mass of bromine is 79.904, and since there are two of them in the Calcium Bromide molecule, we'll multiply it by 2 to get 159.808. Dividing that by the full mass of the molecule then multiply it by 100 will give you the answer.
Yes it is possible for a balloon to expand under these conditions. When objects are exposed to an atmospheric pressure beyond their capabilities, their physical characteristics change. This is because, molecules within the balloon are constantly moving and reacting to its external environment.
The other spot that would be assuming all starting material was consumed are drop or splash an organic compound on the plate.
When we pour a petroleum on the solid mixture. It will mixed the biphenyl but not the triphenylmethanol and this causes separation.
The full form of TLC Plate is Thin Layer Chromatography Plates
It is a ready-made plates used which are chemically fixed.
The halted phase is draw on on its surface in the form of a thin layer. The halted phase on the plate has a fine particle size and also has a consistent thickness.
Uses of TLC Plates : for estimating the purity in the chemical formula and for finding compounds.
It is a composition of silica gel with a back support of plastic.
It shows UV absorption.
To know more about TLC Plates here :
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