A sample of contains 2.36 moles of nitrogen.

(a) number of moles of present

_____ mol

(b) mass of the sample

_____ g

(c) number of moles of oxygen in the sample

_____  mol

(d) mass of oxygen in the sample

_____ g

I have a test coming up and am confused by this problem! A stepby step explination would be awesome!

Really confused on this one. Show work please.

Calculate ΔG (in kJ) at 65 oC for the reaction: N2O(0.0041 atm) + H2(0.17 atm) ↔ N2(422.7 atm) +H2O(l)

what mass of hydrogen gas can be formed if 12.0g of aluminum reacts with excess hcl? im a bit confused on this is what i think you should do so far Al + HCL ~> H but i really dont know. if you could explain why and how you do it that'd be awesome