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volleyballcoldplay
@volleyballcoldplay
August 2022
1
7
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Пожалуйста, помогите решить задачу по химии:
Дано:
m(Al) = 2,7 г
m ([tex] H_2 [/tex]) - ?
V ([tex] H_2 [/tex]) - ?
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dubes
2,7 г х г
2Al+6HCL=2AlCl3+3H2
2 моль 3 моль
27 г/моль 2 г/моль
54 г 6 г
х=2,7*6/54=0,3 г
n(H2)=0,3/2=0,15 моль
v(H2)=0,15*22,4=3,36 л
3 votes
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Answers & Comments
2Al+6HCL=2AlCl3+3H2
2 моль 3 моль
27 г/моль 2 г/моль
54 г 6 г
х=2,7*6/54=0,3 г
n(H2)=0,3/2=0,15 моль
v(H2)=0,15*22,4=3,36 л