en un recipiente se tiene 800 g de una solución al 35% en masa de ácido sulfuroso, de la cual se evapora 80ml de agua. ¿cuál es el porcentaje en masa de ácido sulfuroso en la nueva solución? dato: densidad del agua es 1g/ml.

The mass percent of sulfurous acid in the new solution : 38.9%

In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.

solution 1

composition :

solution 2(new solution)

composition :

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

the answer is na (sodium)