Si una solución de masa de 789 g con densidad 1,2 g/ml , posee 320 g de soluto, que en este caso es cloruro de sodio, ¿Cuál sería su molaridad?

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

i think its both a and b