Al + O2= Al2O3
Al2O3 + H2O = Al(OH)3
Al(OH)3 + NaOH (избыток)= Na[Al(OH)4]
Na[Al(OH)4] + HCl = NaCl +Al(OH)3
Al(OH)3 + HCl =AlCl3 + H2O
AlCl3 + Ag(NO3)2 = Al(NO3)3 + AgCl(осадок)
Cu>CuCl2>CuOHCl>Cu(OH)2>Cu(NO3)2>CuO>CuSO4
Cu + FeCl3 = FeCl2 + CuCl2
CuCl2 + H2O = CuOHCl +HCl
CuOHCl + NaOH = Cu(OH)2 + NaCl
Cu(OH)2 + HNo3 = Cu(NO3)2 + H2o
Cu(NO3)2 = CuO + NO2
CuO + H2so4 = CuSO4 + H2O
Коэффиценты расставить не забудь)
Дано
m(ppa H2SO4) = 196 g
W(H2SO4) = 10%
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m(Al(OH)3)-?
m(H2SO4) = 196*10% / 100% = 19,6 g
2AL(OH)3+3H2SO4-->Al2(SO4)3+6H2O
M(H2SO4) = 98n g/mol
n(H2SO4) = m/M =19.6 /98 = 0.2 mol
n(Al(OH)3) = 3n(H2SO4)
n(H2SO4) = 0.2 / 3 = 0.066 mol
M(Al(OH)3) = 78 g/mol
m(Al(OH)3) = n*M = 0.066 * 78 = 5.15 г
ответ 5.15 g
n = 5 моль
Vm = 22.4 л\моль
V = n × Vm = 5 моль × 22.4 л\моль = 112 л