Notes on vacuum distillation in the labo
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McDowall, F. H.
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Article
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1928
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Wiley (John Wiley & Sons)
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CLLEMISTRY AKD INDUSTRY 211 elect.ricn1 charge: becnusc, the above assumption necd not bc made. It has been pointed out by Main Sniithl, that 7. It shows the masiniiim possiblc vnlency as thc total nuinbcr of dots round the atom. 8. It sliows tlic valcncy actually in opcration ns thc number of dots