Химия 10 класс. 40 баллов.
1.) Допишите:
...CH3-I+Na=>
2.)Задача
W(H)=11,1%
d воздух= 1,863
CxHy-?
1.) Допишите:
...CH3-I+Na=>
2.)Задача
W(H)=11,1%
d воздух= 1,863
CxHy-?
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Answers & Comments
2)Mr(в-ва)= 1.863×29г/моль
Mr(в-ва)=54г/моль
W=(a*Ar)/Mr
a*Ar=W*Mr
a=(W*Mr)/Ar
a(H)=(W*Mr)/Ar
a(H)=(0.111×54)/1
a(H)=6
W(C)=100%-W(H)
W(C)=88.9%
a(C)=(0.889×54)/12
a(C)=4
C4H6-бутадиен