Question

Calcule el cambio de volumen por mezclado, mL, cuando se preparan 250 mL de una solución de etanol-agua al 20 por 100 en masa. A la temperatura trabajada, la densidad de la mezcla es 0,9687 g/mL; la del etanol es 0,7893 g/mL y la del agua es 0,9982 g/mL.

Answer 1

Respuesta:

had a great weekend. On Friday afternoon, I finished work at 5 PM. I went home and took a shower. Then I went to see a couple of my friends at a bar downtown.

We had a couple of beers and a nice talk.

Tom told us about his new job, and Jim told us about his new girlfriend. After a while, we went to a restaurant and had pizza. I went to bed late that night, but I was very happy.

On Saturday morning I went running in the park. I ran 5 kilometers, and then came home.

After that, I met my girlfriend for lunch. We went to a Thai restaurant near my house. I love Thai food!

I spent the evening with my girlfriend, watching TV on the Sofí. hope it helps you a lot I'm not dead