Question

com base na teoria de proust e lavoisier,informe qual a massa de cal hidratada se forem usadas 28 g de cal viva?

Answer 1

$CaO + H_{2} O --\ \textgreater \ Ca(OH)_{2}$

CaO
40 + 16 = 56

Ca(OH)2 = 40 + (16 +1) 2 = 74g

H2O
2 + 16 = 18g
56g de CaO ---- 18g de água --- 74g de cal hidratada

56g --- 74g
28g --- x
x = 37g