How many grams of N2 are in 44.8L at STP?

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

What is the mass of 0.46 mil of mgcl2