The equilibrium constant K, for the reaction 2NO2 (g) = 2NO (g) + O2(g)
is 158 at 1000 K. What is the equilibrium pressure of O, if
the PNo: = 0.400 atm and PNo = 0.270 atm?

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

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)

Using the periodic table, complete the table to describe each atom. type in your answers