Question

去除NaOH中的Na2CO3所有像这样类似的出杂质的初中方程式

Answer 1

HCl + NaOH ==== NaCl +H2O
HCl + KOH ==== KCl +H2O
2HCl + Cu(OH)2 ==== CuCl2 + 2H2O
2HCl + Ca(OH)2 ==== CaCl2 + 2H2O
3HCl + Fe(OH)3 ==== FeCl3 + 3H2O
H2SO4 + 2NaOH ==== Na2SO4 + 2H2O
H2SO4 + 2KOH ==== K2SO4 + 2H2O
H2SO4 + Cu(OH)2 ==== CuSO4 + 2H2O
3H2SO4 + 2Fe(OH)3==== Fe2(SO4)3 + 6H2O
CaCO3 + 2HCl === CaCl2 + H2O + CO2↑
Na2CO3 + 2HCl === 2NaCl + H2O + CO2↑
MgCO3 + 2HCl === MgCl2 + H2O + CO2↑
HCl + AgNO3 === AgCl↓ + HNO3
Na2CO3 + H2SO4 === Na2SO4 + H2O + CO2↑
H2SO4 + BaCl2 ==== BaSO4 ↓+ 2HCl
2NaOH + CuSO4 ==== Cu(OH)2↓ + Na2SO4
3NaOH + FeCl3 ==== Fe(OH)3↓ + 3NaCl
2NaOH + MgCl2 ==== Mg(OH)2↓ + 2NaCl
2NaOH + CuCl2 ==== Cu(OH)2↓ + 2NaCl
Ca(OH)2 + Na2CO3 === CaCO3↓+ 2NaOH
NaCl + AgNO3 ==== AgCl↓ + NaNO3
Na2SO4 + BaCl2 ==== BaSO4↓ + 2NaCl

追问

3Q

Answer 2

通过加入Ba(OH)2或者Ca(OH)2达到目的