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Chemistry, 27.07.2019 01:20 ValeryGi3721
"a sample of silicon has an average atomic mass of 28.084amu. in the sample, there are three isotopic forms of silicon. about 92.22% of silicon atoms are 27.9769amu, which have the mass of 28si; about 4.68% are 28.9764amu, which have the mass of 29si, and the remaining isotope, 30si, has a mass of 29.9737amu. calculate the percent isotopic composition of 30si."
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"a sample of silicon has an average atomic mass of 28.084amu. in the sample, there are three isotopi...
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