Chemistry, 29.10.2020 19:00 meganenaranjo
Analysis of an unknown element by mass spectrometry determines that 59.0% of the sample has an atomic mass of 79.0 amu, while the remainder has a mass of 81.0 amu. What is the average atomic mass of this unknown substance?
Answers: 2
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11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
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Which metal exist in liquid state and can be cut with knife ?
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How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene
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Connect the whole numbers on the periodic table to indicate what they represent?
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Analysis of an unknown element by mass spectrometry determines that 59.0% of the sample has an atomi...
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