CH3-COH+2Cu(OH)2=CH3COOH+Cu2O+H2O
n(CH3COH)=22/44=0,5 моль
n(CH3COOH)=n(CH3COH)=0,5 моль
m(CH3COOH)=0,5*60=30 г
Получается Сульфит лития. Li2SO3.
Fe2O3 + 6 HCl → 2 FeCl3 + 3 H2O<span><span>
x г 2,24л
Fe</span> + <span>2 <span>HCl</span></span> → <span>FeCl2</span> + <span>H<span>2
</span></span></span><span><span>56г 22,4л
</span>
</span>1. m(Fe)= 56*2.24/22.4= 5.6 (г)
2. w(Fe)= 100*5.6/20 = 28%
3. w(Fe2O3) = 100-28 = 72%
1)H2O+SO3=H2SO4
2)H2O+MgO=Mg(OH)2
3)Ba(OH)2+SO3=BaSO4+H2O
4)Ba(OH)2+HCl=BaCl2+H2O
5)SO3+MgO=MgSO4
6)HCl+MgO=MgCl2+H2O
Mr (C6H14) = 6 Ar (C) + 14 Ar (H) = 6 * 12 + 14 = 86 г/моль