Calculate the empirical formula of the oxide
A 1.45 g sample of phosphorus burns in air and forms 2.57 g of a phosphorus oxide. Calculate the empirical formula of the oxide. Express your answer as a chemical formula.
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When a dislocation passes right through a crystal slip equal to a lattice spacing occurs. Estimate the number of dislocations on the (111) plane which would be needed to produce 5% plastic deformation in an aluminium specimen 1cm long (for Al the
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