2na+2h2o=2naoh+h2
n(na)=m(na)/M(na)=1.84/23=0.08моль
n(h2)=1/2n(na)=1/2*0.08=0.04моль
m(h2)=n(h2)*M(h2)=0.04*2=0.08г
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2na+2h2o=2naoh+h2
n(na)=m(na)/M(na)=1.84/23=0.08моль
n(h2)=1/2n(na)=1/2*0.08=0.04моль
m(h2)=n(h2)*M(h2)=0.04*2=0.08г