Question

Calcule a massa molecular e a massa molar do: a) C4H10, b) NaHCO3, c) H3PO4, d) HCN.

Answer 1

a) C4H10 = (4 . 12) + (10 . 1) = 58 u e 58 g/mol

b) NaHCO3 = 23 + 1 + 12 + (3 . 16) = 84 u e 84 g/mol

c) H3PO4 = (3 . 1) + 31 + (4 . 16) = 98 u e 98 g/mol

d) HCN = 1 + 12 + 14 = 27 u e 27 g/mol

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