2Al+3H2S=Al2S3+3H2
m(Al)=2.7 г
n(Al)=m/M=2.7/27=0.1 моль
n(Al)/2=n(Al2S3)/1
=> n(Al2S3)=0.05 моль
m(Al2S3)=n*M= 0.05*150=7.5 г
2Al+3H2S=Al2S3+3H2
m(Al)=2.7 г
n(Al)=m/M=2.7/27=0.1 моль
n(Al)/2=n(Al2S3)/1
=> n(Al2S3)=0.05 моль
m(Al2S3)=n*M= 0.05*150=7.5 г