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111mashkaromas
@111mashkaromas
September 2021
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Какой объем водорода при нормальных условиях вытесняет цинк из 100 граммов раствора с массовой долей хлоридной кислоты 10%?
помогите, пожалуйста! очень надо!
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Alex009009
Zn+2HCl=ZnCl2 + H2
m(в-ва HCl)=100*0,1=10r
M(HCl)=36,5r
n=10r/36,5~0,274моль
0,274/2=х/1
х=0,137моль
V=n*Vm=0,137*22,4~3,07л
Ответ:3,07л
1 votes
Thanks 1
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Answers & Comments
m(в-ва HCl)=100*0,1=10r
M(HCl)=36,5r
n=10r/36,5~0,274моль
0,274/2=х/1
х=0,137моль
V=n*Vm=0,137*22,4~3,07л
Ответ:3,07л