How can explain the average atomic mass of m
Determine the average atomic mass of M when the M2S3(s) is heated in air, it is converted to MO2(s) and a 4.200 g sample of M2S3(s) shows a decrease in the mass of 0.239 g when it is heated in air.
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An electron in hydrogen absorbs a photon having a wavelength of around 19.1 µm and ends up in the n = 8 state. Determine the initial state of the atom?
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