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Problem- 1) The dimensions of aluminum foil in a box for sale in supermarkets are 66 yards by 12 inches. The mass of the foil is 0.83 kg. If its density is 2.70 g/cm3, then what is the thickness of the foil in inches?

2) When the release of energy from an excited state to the ground state of electron follows that nFINAL is always equal to 3. Determine the frequency (in Hz) and wavelength (in angstrom) of electromagnetic radiation emitted if the excited electron is coming from an initial=6. Is the electromagnetic radiation released a visible light?

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Category:- Chemistry
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