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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.
what is hypercongujative effect
You make up 0.100 L of a buffer having 1.00 M acetic acid and 1.10 M sodium acetate. The Ka of acetic acid is 1.8 x 10-4. (a) Determine the pH of this buffer.
Visualisation of hybrid orbitals -C atomic orbitals Hybrid orbitals are the result of a model which combines atomic orbitals on a single atom in the ways that lead to a new se
what is indicators?explain theories of indicators?
explain about law of chemical combinations in about 200 words?
The quantity of heat liberated of absorbed when one mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formatio
can i have some reactions of p block elements such as in water,with oxygen,in acid etc...
Q. Important applications of indium? The most important applications of indium are in protection of bearings against wear and erosion in low melting alloys and in electronic de
How do we solve numerical problems in double titration
redox reaction of ethanal,caustic soda&copper hydroxide
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