Cual es el pKa de NaOH? ​

Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on

Who is better, messi or cristiano, i need this for a chemistry class. asap

How many moles of gas are present if p=11 atm, v=12l, t=185k?