how to calculate the experimental value

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. If classical theory is true, the lesser the intensity the energy imparted to the electron must be less and hence there should have been a 'threshold intensity' below which there is no photoelectric effect. But this is not true. Instead, it was found that the frequency of the light is the key para..

For this reaction, the increase in the concentration of acetic acid is determined by measuring the pH of the solution (sample). The concentration values obtained at different times are then plotted. From the graph of concentration versus time, the average rate and instantaneous rates of t..

A reaction is carried out at two different initial concentrations of a reactant [A], that is [A] 0 , 1 and [A] 0 , 2 and the respective t 1 / 2 values (t 1 / 2 ) and (t 1 / 2 ) 2 are obtaine..

Write down the formula of the given molecule/ion leaving some space between the atoms. Write oxidation number on the top of each atom with 'x' in case of the atom whose oxidation number has to be calculated. Write down the total oxidation numbers of each element beneath the formul..

Let, The mass of the organic compound taken be = W g Increase in the mass of magnesium perchlorate tube = W 1 g Increase in the mass of the KOH tube = W 2 g So, Mass of water formed = W 1 g Mass of carbon dioxide formed = W 2 g ..

Let, The mass of the organic compound be = W g Mass of the precipitate of BaSO 4 = W 1 g From stoichiometry, BaSO 4 = S 1 mol 1 mol 1 molecular mass 1 atomic mass 233 g 32 g Therefore, ..

Let, The mass of silver salt taken for ignition be = W g Mass of silver left behind after ignition = W 1 g We have RCOOAg = Ag1 equivalent 1 equivalent The equivalent mass of silver is 108. Hence, the mass of silver salt that would leave 108 g of residue (equivalent mass of the silver) i..