Consider the reaction A(g) + B(g) ⇌ C(g) + D(g) in a 1.0-L rigid flask. Answer the following questions for each situation (a–d):

i. Estimate a range (as small as possible) for the requested substance. For example, [A] could be between 95 M and 100 M.

ii. Explain how you decided on the limits for the estimated range.

iii. Indicate what other information would enable you to narrow your estimated range.

iv. Compare the estimated concentrations for a through d and explain any differences.

a. If at equilibrium [A] = 1 M, and then 1 mole of C is added, estimate the value for [A] once equilibrium is reestablished.

b. If at equilibrium [B] = 1 M, and then 1 mole of C is added, estimate the value for [B] once equilibrium is reestablished.

c. If at equilibrium [C] = 1 M, and then 1 mole of C is added, estimate the value for [C] once equilibrium is reestablished. 

d. If at equilibrium [D] = 1 M, and then 1 mole of C is added, estimate the value for [D] once equilibrium is reestablished.