[請益] 一題國中理化
若將碳的原子量由12改成36,則一個甲烷分子(CH4)重量為多少克? (A)16 (B)48
(C)16/6*10^23 (D)48/610^23。
想法:
一個甲烷分子(CH4)重量,是否等於原本的一個甲烷分子(CH4)重量?
答案是:答案選C
但標準答案卻是(D)?
試想:亞佛加爵數不變的話,分子量改變了,答案會變成(D)
但實際的甲烷分子(CH4)重量不是不會變嗎?
請問各位大大,是哪個環節出錯了,不然答案怎會選(D)?
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