Q:

What distinguishes an osmole from a mole

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What distinguishes an osmole from a mole?


  1. In a sample of substance, the number of osmoles is twice the number of moles
  2. Both mole and osmole may be used in reference to ionic compounds, while covalent compounds are described by mole alone.
  3. the mass of a mole is the sum of the relative atomic masses (RAM) of the atoms in the formula stated as grams. An osmole is half of this mass.
  4. an osmole applies only to covalent molecular substances, whereas a mole is validly applied to both covalent and ionic substances.

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B: Both mole and osmole may be used in reference to ionic compounds

(because the atoms of ionic compounds separate into their constituent

ions when dissolved), while the atoms within covalent compounds remain as

molecules even when dissolved.

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