The compound pcl5 decomposes into cl2 and pcl3. the equilibrium of pcl5(g) cl2(g) + pcl3(g) has a keq of 2.24 x 10-2 at 327°c. what is the equilibrium concentration of cl2 in a 1.00 liter vessel containing 0.235 mole of pcl5 and 0.174 mole of pcl3? remember to use the correct number of significant digits. cl2 = are the products or reactants favored?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.