Question

A Quantos mols correspondem 37g de ca (oH)2 ? Cá =40 o= 16 H =1

Answer 1

Massa Molar do Ca(OH)2 = (40x1) + (16x2) + (1x2) = 58g/mol

1 mol de Ca(OH)2 -------------> 58g Ca(OH)2

x -----------------> 37g Ca(OH)2

x = 37g/ 58g/mol

x = 0,64