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Soluto: NaCl
Pesos atómicos: Na = 23; Cl = 35,5
Peso del soluto: Psoluto = 32g
Peso Fórmula: PF= 23(1) + 35,5(1)
PF = 23 + 35,5 = 58,5 g / mol
Volumen de solución: V sol = 0, 75 L
Psoluto
M = -----------------------
PF x V sol
32 g
M = ------------------------------
58,5 g / mol (0,75 L)
32
M = ------------ mol / L
43,875
M = 0,729 mol / L