NaOH + HCl = NaCl + H2O
2NaOH + CO2 = Na2CO3 + H2O
CuCl2 + 2NaOH = Cu(OH)2↓ + 2NaCl
4Mg + NO3 + 10H3O+ = 4Mg2 + NH4 + 13H2O 4Mg + 10HNO3 = 4Mg(NO3)2 + NH4NO3 + 3H2O. <span>…
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C2h5oh+ch3cooh=ch3cooch2h5o+h2o
m c2h5oh=200;100x96=192
n c2h5oh=192:2240=0,09моль
M 200:100x60=120гр
120:0,8=150 мл:2240=0,07
Ищем по сн3соон
0.07-0,05=0,02
0.02х88=1,76 грамм
M(NaCl)=200*0.009=1.8г m(H2O)=200-1.8=198.2