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SOLUCION = 50 g + 125 cm³ = 175 cm³
%m/v = masa soluto x 100
v solución
% m/v = 50 g x 100 =28,57 %m/v
175 cm³
2. M = moles/litro
n = m/Mm n = número de moles
Mm del CaCO₃ = 100,087 g/mol
n = 30 g / 100,087 g/mol =0.299 mol
M= 0.299 mol / 1,2 litros = 0.249 mol/litro