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Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88Γ10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Asample of aluminum foil contains 8.60 Γ 1023 atoms. what is the mass of the foil?
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What are the coefficients to balance the following equation? ba+br=babr2
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