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g de hierro = 25 g
Densidad del hierro= 7874 kg/m3 = 7874 1000g/ 1000000 ml = 7.874g/ml.
ml de agua= 50 ml
Densidad del agua= 997 kg/m³ = 997 * 1000g/1000000ml = 0.997 g/ml.
Peso de la solución:
g hierro + g agua = 25g + ( 50 * 0.997 g/ml) = 74.85 g.
Volumen de la solución:
ml hierro + ml agua = (25/7.874 g/ml) + (50ml) = 3.17+50 = 53.17 ml
Densidad = g sol /ml Sol
Densidad= 74.85/53.17 = 1.03 g/ml.