错了杀我
AAAAAAAAAAAAAAAAAAAAAAA
Na2S, Na2SO3, Na2SO4
共同的有Na2S
氧元素的质量分数为22%,那么纳和S占
1-22%=78%
即Na2S占
Na2S=78=78%
2Na=46=46%
S=32=32%
AAAAAAAAAAAAAAAAAAAAAAAA
错了杀我
AAAAAAAAAAAAAAAAAAAAAAA
Na2S, Na2SO3, Na2SO4
共同的有Na2S
氧元素的质量分数为22%,那么纳和S占
1-22%=78%
即Na2S占
Na2S=78=78%
2Na=46=46%
S=32=32%
AAAAAAAAAAAAAAAAAAAAAAAA