If a student collects 540 mL of oxygen gas at a pressure of 90 kPa and a temperature of 19 °C. What is the volume of the O2 at STP?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!