Question

halla la masa molecular para los siguientes compuestos a)CaSO4 b) Na2PO4 c) Ca3(BO3)2

Answer 1

CaSO4

Ca: 1 x 40 = 40 g/mol
S: 1 x  32 = 32 g/mol
O: 4 x 16 = 64 g/mol
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           Mm = 136 g/mol


Na3PO4
Na: 3 x 23 = 69 g/mol
P: 1 x 31 = 31 g/mol
O: 4 x 16 = 64 g/mol
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           Mm = 164 g/mol

Ca3(BO3)2
Ca: 3 x 40 = 120 g/mol
B: 2 x 11 = 22 g/mol
O: 6 x 16 = 96 g/mol
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           Mm = 238 g/mol