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%m/m = masa soluto x 100
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masa solución
% m/m = 30 g x 100
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720 g
% m/m = 4.16 %
2-Calcula el % en volumen de una disolucion que usi 820 ml de alcohol y 115 ml de agua.
% v/v = v soluto x 100
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v solución
preparar la solución:
solucion = soluto + solvente
solución =820 mL + 115 mL = 935 mL DE SOLUCION
% v/v = 820 mL x 100
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935 mL
%v/v = 87.70 % mL/mL
3- Cuantos gramos de soluto hay en una disolucion de 920ml concentrada al 26%
%M/V = masa soluto x 100
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v solución
masa soluto = %m/v x v solución
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100
masa soluto = 26 g/mL x 960 mL
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100
MASA SOLUTO = 249.6 g