Question

Determina las masas moleculares de los siguientes compuestos
I. NaOH
II. C2H5OH
III. H3PO4
IV. P2O5
(Na = 23; P = 31)...

Answer 1

Respuesta:

........

Explicación paso a paso:

Sabiendo que Na = 23 [UMA], P = 31 [UMA],

O = 16 [UMA], H = 1 [UMA] y C = 12 [UMA]

NaOH = (23 + 16 + 1) [UMA]

= 40 [UMA]

C2H5OH = (12 × 2 + 1 × 5 + 16 + 1) [UMA]

= (24 + 5 + 17) [UMA]

= 46 [UMA]

H3PO4 = (1 × 3 + 31 + 16 × 4) [UMA]

= (3 + 31 + 64) [UMA]

= 98 [UMA]

P2O5 = (31 × 2 + 16 × 5) [UMA]

= (62 + 80) [UMA]

= 142 [UMA]