Can someone explain how to solve this question? once i get how to solve it i should be able to do the rest.

ex) how many cm^3 absolute alcohol was used for the preparation of 580 cm^3 ethanol-water mixture whose ethanol content is 70 v/v?

extra info: the density of absolute alcohol in this exercise is 0.789 g/cm^3 and the density of water is 1.000 g/cm^3

your will be greatly appreciated!

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.