1.N:H:S:O=2:2*4:1:4=2:8:1:4
2.M(N):M(H:M(S):M(O)=2*14:8*1:1*32:4*16
=28:8:32:64 =7:2:8:16
3.N元素在化学式里的质量分数为
【(7)/(7+2+8+16)】*132=27.99999999≈28
1.N:H:S:O=2:2*4:1:4=2:8:1:4
2.M(N):M(H:M(S):M(O)=2*14:8*1:1*32:4*16
=28:8:32:64 =7:2:8:16
3.N元素在化学式里的质量分数为
【(7)/(7+2+8+16)】*132=27.99999999≈28