Definition of molecular weight in English:

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molecular weight

noun

Another term for relative molecular mass.
Example sentences
  • Milk protein, or casein, is a mixture of molecules with molecular weights ranging from 75,000 to 375,000 daltons (amu).
  • The ethyl group has a greater molecular weight than the smallest alkyl radical which is the methyl group.
  • Alcohols and ethers having higher molecular weights do not dissolve well in water, however, because the water molecules can not completely surround those molecules.
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