1) w(C) = 72/78 *100 = 92%
w(H) = 100-92 = 8%
2) w(Na) = 46/106 * 100 = 43%
w(C) = 12/106 * 100 = 11%
w(O) = 100-43-11 = 46%
3) w(K) = 78/174 * 100 = 44,8%
w(P) = 31/174 * 100 = 17,8%
w(O) = 64/174 * 100 = 36,8%
w(H) = 100-44,8-17,8-36,8 = 0,6%
V(Cl2)=n*Vm
n(CH3COOH)=m/M=mра-ра*W/M=200*0,008/48=0,3 моль
CH3COOH + Cl2 = CH2ClCOOH + HCl
n(Cl2):n(CH3COOH)=0,3 моль
V(Cl2)= 0,3*22,4 = 6,72 л
<span>Mg(OH)2+H2SO3=MgSO3+2H2O
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn </span>
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