标准状况下,1L N2中含有N个N2分子,则阿伏加德罗常数为  (   

标准状况下,1L N2中含有N个N2分子,则阿伏加德罗常数为               

   AN/28 mol-1        BN /22.4 mol-1  C22.4 N mol-1      D28N mol-1 

答案

C

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