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?

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

What overall charge must all compounds have

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.