The reaction C(s) + H_2 O(g) equivalent CO(g) + H_2 (g) is allowed to reach equi

Question

The reaction C(s) + H_2 O(g) equivalent CO(g) + H_2 (g) is allowed to reach equilibrium in a closed, ridged vessel. Subsequently, some argon (Ar) gas is injected into the vessel. As a result, the equilibrium: Will shift to the right Will shift to the left Will not shift Cannot tell Barium hydroxide, Ba(OH)_2, is a very strong base. The pH of an aqueous solution of 0.0015 M Ba(OH)_2 at room temperature (25 degree C) is: 2.22 2.52 2.82 3.82 7.00 11.18 11.48 12.48 The acid dissociation constant, K_a, of propionic acid, CH_3 CH_2 COOH, is 1.34 * 10^-5. The pH of a solution of 0.44 M of propionic acid in water is:

Explanation / Answer

19

sice argon gas is nuetral it cannot react with any of the substance so

it will not affect the equilibrium of the reaction

option c is the correct answer

20

since Ba(OH)2 is a strong base it will hydrolyse 100%

Ba(OH)2   ----> Ba2+ + 2OH-

so concentrations 2 OH- = 2 x 0.0015 M = 0.003 M

pOH = - log(OH-) = -log(0.003) = 2.52

pH + pOH = 14

pH = 14-pOH = 14 - 2.52 = 11.48

= option g is correct

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.