Equilibrium Questions and Answers

Two solid compounds X and Y dissociate at a certain temperature as follows X(s) A(g) + 2B(g) Kp₁= 9 × 10-³ atm³ Y(s) 2B(g) + C(g) Kp₂ = 4.5 x 10-³ atm³ The total pressure of gases over a mixture of X and Y is x atm. Find x(100)/9

Ethane gas and steam in equimolar amounts are taken in a container and sealed where the following equilibria were established. C2H6(g) + 2H₂O(g) = 2CO(g) +5H₂(g) CO(g) +2H₂(g)=CH3OH(g) At equilibrium, if partial pressure of H₂(g) and CH3OH(g) are 1 atm each and total pressure is 10 atm. Then the initial pressure of C2H6(g) in atmosphere is (A) 4 atm (B) 5 atm (C) 10 atm (D) 12 atm

Which combination of mixtures will yield buffer solution? (A) 100 mL 0.1 M CH3COOH and 50 mL 0.1 M NaOH (B) 200 mL 0.2 M NH4CI and 100 mL 0.1 M NaOH (C) 200 mL 0.2 M CH3COONa and 100 mL 0.1 M HCI (D) 100 mL 0.1 M NH4OH and 50 mL 0.1 M HCI

A 28.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1372 MKOH solution. A volume of 43.22 mL of KOHwas required to reach the equivalence point. What is the concentration of the unknown H₂SO4 solution? Express your answer using four significant figures.

K=1.3 x 10-10 for the reaction HC6H5O(aq) H+(aq) + C6H5O-(aq). In which direction is the equilibrium favored? Forward. Reverse. Appreciable quantities of all species are present at equilibrium. No direction is favored. There is not enough information to determine the direction.

What volume in milliliters of 9.950x10-2 M sodium hydroxide solution is required to reach the equivalence point in the complete titration of a 14.0 mL sample of 0.144 M phosphoric acid? Express your answer using three significant figures.

What volume in milliliters of a 0.101 M NaOH solution is required to reach the equivalence point in the complete titration of a 15.0 mL sample of 0.132 M H₂SO4?

Select the correct statement(s) from the below given options (A) [Fe(H₂O)5(OH)]2+ is conjugate base of [Fe(H₂O)6]3+ (B) To rank the relative strengths of strong acid, we must dissolve them in a solvent that is a stronger base than water (C) In water HF is weak acid, and HCI, HBr and HI appear equally strong (D) An acid which donates proton faster is stronger acid than an acid which donates to greater extent

Nitrogen gas reacts with hydrogen gas to produce ammonia: N2 (g) + 3H2(g) → 2NH3(g) a. Calculate the molar mass of all 3 components b. If you have 4 moles of N2, how many moles of NH3 can be produced? c. If you form 5.6 moles of NH3, what mass of NH3 do you produce? d. If 7.01 g of N2 reacts with hydrogen what mass of NH3 can be produced?

Consider the following chemical reaction at equilibrium: NH3(aq) + H₂O(l) -> NH4+ (aq) + HO- (aq) If one drop of aqueous sodium hydroxide (NaOH) is added, in which direction will the equilibrium shift? A) reactants B) products C) neither the reactants nor the products