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Calculate the average atomic mass of chlorine if no distinction is made between its different isotopes? |
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Answer» Solution :The element chlorine is mixture of 75.77 % of `.."_(17)^(37) Cl` and 24.23 % of `""_(17)^(37) Cl` . So the AVERAGE atomic mass will be `(75.77)/(100) xx 34.96885u + (24.23)/(100) xx 36.96593 u= 35.453u` In fact , the chemist uses the averge atomic mass or SIMPLY CALLED chemical atomic weight (35.453 u for chlorine) of an element . So it must be eremebered that the atomic MAS whichs is MENTIONED in the periodic table is basically averaged atomic mass |
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