d. Determine the Kc for the reaction
2CH4 <------> C2H2 + 3H2 (5 Marks)
given the following information
CH4 + H2O <------> CO + 3H2 Kc = 1.2 x 10-25
2C2H2 + 3O2 <------> 4CO + 2H2O Kc = 1.1 x 10
H2 + 1/2O2 <-------> H2O Kc = 1.1 x 1030
3. Acid and Bases
a. Use curved arrows to illustrate the definition of acids and bases according to Bronsted/Lowry and Lewis when the following compounds dissociate in water.
i. HPr (2 Marks)
ii. (C2H5)2NH (2 Marks)
b. Which of the following is a strong acid/base (explain your reasoning)
i. A solution with pKa = 4.74 or pKa = 2.5 (2 Marks)
ii. A solution with Kb = 1.8 Ã 10-5 or 9.5 Ã 10-8 (2 Marks)
c. Write the conjugate acid/base for the following dissociating in water (2 Marks)
i. HCOOH (acid)
ii. HONH2 (base)
d. Determine the Kc for the reaction
2CH4 <------> C2H2 + 3H2 (5 Marks)
given the following information
CH4 + H2O <------> CO + 3H2 Kc = 1.2 x 10-25
2C2H2 + 3O2 <------> 4CO + 2H2O Kc = 1.1 x 10
H2 + 1/2O2 <-------> H2O Kc = 1.1 x 1030
3. Acid and Bases
a. Use curved arrows to illustrate the definition of acids and bases according to Bronsted/Lowry and Lewis when the following compounds dissociate in water.
i. HPr (2 Marks)
ii. (C2H5)2NH (2 Marks)
b. Which of the following is a strong acid/base (explain your reasoning)
i. A solution with pKa = 4.74 or pKa = 2.5 (2 Marks)
ii. A solution with Kb = 1.8 Ã 10-5 or 9.5 Ã 10-8 (2 Marks)
c. Write the conjugate acid/base for the following dissociating in water (2 Marks)
i. HCOOH (acid)
ii. HONH2 (base)
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