A.)the equilibrium constant, kp, for the following reaction is 0.110 at 298 k:
nh4hs(s) nh3(g) + h2s(g)
calculate the equilibrium partial pressure of h2s when 0.371 moles of nh4hs(s) is introduced into a 1.00 l vessel at 298 k.
ph2s = ? ? atm
b.) the equilibrium constant, kp, for the following reaction is 0.497 at 500 k:
pcl5(g) pcl3(g) + cl2(g)
calculate the equilibrium partial pressures of all species when pcl5(g) is introduced into an evacuated flask at a pressure of 1.47 atm at 500 k .
ppcl5 = ? ? atm
ppcl3 = ? ? atm
pcl2 = ? ? atm

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

What is the molarity of 60.0 grams of naoh dissolved in 750 milliliters of water? a) 1.1 m b) 2.0 m c) 12 m d) 75 m