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Calculate the molar concentration of the solution essential to obtain the value of 10 molecules per µm2. (For this calculation we suppose that the transfer of the dye molecules from solution to the sample surface by evaporation of the solvent is homogeneous on the whole wetted area.)
The sample is illuminated with the 543.5 nm-line of a green He-Ne laser. The excitation power is adjusted so that the illuminated area (100 nm in diameter) is hit by 3 · 1010 photons per second.
Simple Distillation - Purification of organic compounds Distillation is the joint procedure of vapourisation and condensation. This method is employed for the purification o
Illustrate resonance structures that define the electronic structure of benzene. Illustrate the structures of all conceivable disubstituted benzene isomers bearing two
Alkyl groups - IUPAC System of Naming Organic Compounds These groups involves one hydrogen atom less as compared to the alkane. These groups are named by substituting the suff
observation reaction of alcohol and phenol with sodium hydroxide
how to determine the percentage of association or dissociation in a solution?
Empirical formula Empirical formula of a substance provides the simplest whole number ratio among the atoms of the various elements exist in one molecule of the elements. For i
what risks are involved with the instrument
Q. Show the applications in Bioinorganic chemistry? Bioinorganic chemistry or the study of the role of metal ions in biological cycles is mainly the study of some typical metal
Nuclei contain uncharged neutrons and positively charged protons; these two particles with about the same mass are known as nucleons. The number of protons is the atomic number of
a solid weak acid i weighed, dissolved in water and diluted to exactly 50ml. 25ml of the solution is taken out and is tittrated to a natural endpoin with .10M NaOH. The titrated po
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