Question

peso molecular de HNO3?

Answer 1

H: 1 x 1 = 1 g/mol
N: 1 x 14 = 14 g/mol
O: 3 x 16 = 48 g/mol
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 Mm HNO3 = 63 g/mol

Answer 2

H=1
N=14
O=16*3=48
 
1+14+48=63 g/mol