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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.
whats a reversible cell
What are the major poisnous gases released during burning of the plastic substances? Ans) It is high time that we start taking concrete steps in order to prevent pollution or else
Define Composition of individual phase in phase diagram–three phase? A binary system with three phases has only one degree of freedom and cannot be represented by an area on a
Determine the Coordination number (CN) of HCP In HCP unit cell, the base centered atom touches six corner atoms in the similar plane, three atoms in a plane above and thre
What is vulcanization The process of vulcanization was discovered by Charles Good Year in 1839. He found that when natural rubber is heated with sulphur, its tensile strength,
explain the merits and demerits of calomel electrode
A solution is prepared with 3.85g of a non-ionic unknown compound in 100.0g cyclohexane. The solution had a freezing point of 4.18 degrees Celsius. What is the molar mass of the un
What are the Disadvantages of cold working (i) Higher forces are required for deformation. (ii) Heavier and more powerful equipment is required. (iii) May produce undesir
DNA nucleotides Adenine + Deoxy ribose sugar + Phosphate → Adenosine phosphate Guanine
x gram of metal reacts with chlorine to form y gram of metal chloride.calculate equivalent mass of metal.
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