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Ejercicios masa-masa y masa-volumen

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Ejercicios resueltos Masa-Volumen

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Porcentaje Masa / volumen ( % MIV )

cantidad de masa disuelta en cada 100 ML de solución
% MIV = Masa de SOLUTO ✗ 100

VOLUMEN Disolución



EJEMPLOS
¿ cual es el % Mtv si se realiza una solución a Partir de 30g de cloruro de sodio

en 160 ML Solución
Masa soluto :
30g 1 aplicación
Volumen solución : 160 ML % MIV = ( 309 / 160mL ) •
100

= 18,75 % MI v




2
Se expresa :




18,75 de Nacl estar disueltos POR cada 100 ML de

solución .




Concentracion solución 45g etanol en 350mL De agua
Masa soluto : 45 9 1 * en este caso hay que Pasar Los 459 a ML

Masa solvente : 350 ML con la ecuación de densidad :




571-350=407 ML d
volumen solución 0179

: = M =



DENSIDAD SOLUTO :
0,79 ML

→ 0,79 •
V = 45
% MIV ( 4591407 ) 100
2 = ML •
→ V =
41 = 57 ML y
Y MIV =
11 1 . 0179



3 Se expresa :



11 g de soluto estar Disueltos POR cada 100 ML De solución

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