November 2023 1 9 Report
Una disolución de salmuera se prepara mezclando 30 g de sal con 250g de agua. Calcule su concentración porcentual en masa (porcentaje masa-masa).
a. 10.71 %m/m
b. 12 %m/m
c. 933.3 %m/m
d. 833.3 %m/m​

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