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95. If we consider that, in place of 1, mass of carbon atom is taken to be relative atomic mass unit, the mass of onemole of a substance wilA) incease two foldB) decreases twiceC) be a function of molecular mass of the substanceD) remain unchanged |
Answer» IN CASE OF1/12 1/12 mass of a carbon 12 atom is 1 a.m.u 1 a.m.u = 1/12 * 1.99e-23gm = 1.66e-24 gm Suppose, the substance you are talking about is NITROGEN mass of 1 nitrogen atom = 14 a.m.u mass of 1 mole of nitrogen atom = 6.023e23*14*1.66e-24 = 14 gm IN CASE OF1/6 1/6 mass of a carbon 12 atom will be 1 a.m.u 1 a.m.u = 1/6 * 1.99e-23gm = 3.31e-24 gm Then,mass of 1 mole of nitrogen atom having 14 a.m.u will be 6.023e23*14*3.31e-24 = 28 gm NOW......28gm/14gm = 2..........SO,the mass of one mole of the substance will be 2 times of initial. what is atomic mass unit to in the relation A+B-AB2 |
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