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29 May, 10:22

Calculate the atomic mass of silicon. The three silicon isotopes have atomic masses and relative abundances of 27.9769 amu (92.2297%), 28.9765 amu (4.6832%) and 29.9738 amu (3.0872%). Show your work.

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  1. 29 May, 11:02
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    The atomic mass would be 28.08535 amu. Multiply 27.9769 by. 92297 = 25.803. Multiply 28.9765 by. 046832 to get 1.357. Multiply 29.9738 by. 03872 to get. 925351136. Add 25.803 + 1.357 +.03872 to get 28.08535 amu
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