Experiment 5: prelab EXPERIMENTS IN CHEMICAL

Experiment 5: prelab EXPERIMENTS IN CHEMICALEQUILIBRIUM, chem 206  (1.5 marks) Write the expression for the equilibrium constants for the followingreactions:a. N2(g) + 3H2(g) 2NH3(g)b. 2SO2(g) + O2(g) 2SO3(g) c. NH3(g) + HCl(g) NH4Cl(s)    (3 marks – 1 here, 2 on next page) For reaction 2(a) above, suppose equilibrium has been established. Explain how and why the position of equilibrium will shift in response to thefollowing changes:a. Additional nitrogen is added to the system.b. Ammonia is removed from the system as it forms.c. The pressure on the system is increased.    (1.5 marks) A 1.00 mL sample of dilute acetic acid required 23.4 mL of 0.10 M sodium hydroxide solution to titrate the sample to a phenolphthalein endpoint (which is assumedto be close in pH to the equivalence point). What was the concentration of acetic acid inthe sample (show your work)? How many significant figures are justified in youranswer? Why?