A student ran the following reaction in the laboratory at 481 K: PCl3(g) + Cl2(g) PCl5(g) When she introduced PCl3(g) and Cl2(g) into a 1.00 L evacuated container, so that the initial partial pressure of PCl3 was 2.31 atm and the initial partial pressure of Cl2 was 1.71 atm, she found that the equilibrium partial pressure of Cl2 was 0.325 atm. Calculate the equilibrium constant, Kp, she obtained for this reaction.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m