NA表示阿伏加德罗常数的值,下列说法正确的是 A.5.6 g铁粉在0.1mol氯

NA表示阿伏加德罗常数的值,下列说法正确的是

A.5.6 g铁粉在0.1mol氯气中充分燃烧,转移电子数为0.3NA

B.12.5mL 16mol·L-1浓硫酸与足量铜反应,转移电子数为0.2NA

C.7.8g Na2S和Na2O2的混合物中含有的阴离子数等于0.1NA

D.0.5mol雄黄(As4S4,结构如右图)含有NA个S—S键

答案

C


解析:

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