Question

hallar el oorcentajedce ca co en el car bonato de calcio ca co3

Answer 1

1. calcular ma Mm del CaCO3

Ca: 1 x 40 = 40 g/mol

C: 1 x 12 = 12 g/mol

O: 3 x 16 = 48 g/mol

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Mm = 100 g/mol

2. calcular los % de cada elemento

Calcio

100 g ----- 100 %

40 g ----- x

x = 40 % Ca

Carbono

100 g ----- 100 %

12 g ----- x

x = 12 % C

Oxigeno

100 g ----- 100 %

48 g ----- x

x = 48 % O