Răspuns:
Explicație:
800*10/100 = 80 g NaOH
M NaOH = 40 g/mol
80 : 40 = 2 moli NaOH
2NaOH + H2SO4 = Na2SO4 + 2H2O
sarea este Na2SO4
M Na2SO4 = 142 g/mol
2 moli NaOH ......................1 mol Na2SO4
m = 1*142 = 142 g Na2SO4
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Verified answer
Răspuns:
Explicație:
800*10/100 = 80 g NaOH
M NaOH = 40 g/mol
80 : 40 = 2 moli NaOH
2NaOH + H2SO4 = Na2SO4 + 2H2O
sarea este Na2SO4
M Na2SO4 = 142 g/mol
2 moli NaOH ......................1 mol Na2SO4
m = 1*142 = 142 g Na2SO4