H2O2=1/2 O2+H2O
1 mol H2O2....0.5 moli O2
X moli H2O2... 10 moli O2
X=10*1/0.5=20 moli
1 mol H2O2....34g
20 moli H2O2.......yg
Y=20*34/1=680g
C=md*100/ms
30=680*100/ms
Ms=2266,66g
Mai verifica tu calculele
B)1 mol O2....32g
10 moliO2...zg
Z=10*32=320g
2S+3O2->2SO3
2 moli S......3moli O2
a moli S.......10 moli O2
a=10*2/3=6.66 moli S
1 mol S.....32g
6.66 moli S...b g
b=32*6.66=213,33g