Which one of the following is most soluble
Which one of the following is most soluble
Options
(a) Bi₂S₃ (Ksp = 1 ˣ 10⁻⁷⁰) (b) Ag₂S (Ksp = 6 ˣ 10⁻⁵¹) (c) CuS (Ksp = 8 ˣ 10⁻³⁷) (d) MnS (Ksp […]
Chemistry
Which of the following is not a cheracteristic of equilibrium
Which of the following is not a characteristic of equilibrium
Options
(a) Rate is equal in both directions (b) Measurable quantities are constant at equilibrium (c) Equilibrium occurs in reversible condition (d) Equilibrium […]
Ksp of CaSO₄.5H₂O is 9 ˣ 10⁻⁶, find the volume for 1g of CaSO₄ (M.wt, = 136)
Ksp of CaSO₄.5H₂O is 9 ˣ 10⁻⁶, find the volume for 1g of CaSO₄ (M.wt, = 136)
Options
(a) 2.45 L (b) 5.1 L (c) 4.25 L (d) 3.2 L
Correct Answer:
2.45 […]
The equilibrium constant for mutarotation α-D Glucose ⇌ β-D Glucose is 1.8.
The equilibrium constant for mutarotation α-D Glucose ⇌ β-D Glucose is 1.8. what percentage of a form remains at equilibrium
Options
(a) 35.7 (b) 64.3 (c) 55.6 (d) 44.4
Correct Answer:
35.7
Explanation: […]
40 mL of 0.1 M ammonia solution is mixed with 20 mL of 0.1 M HCl.
40 mL of 0.1 M ammonia solution is mixed with 20 mL of 0.1 M HCl. What is the pH of the mixture? ( pKb of ammonia solution is 4.74)
Options
(a) 4.74 […]
For a reaction , 2NOCl(g) ⇌ 2NO(g) + Cl₂(g), Kc at 427⁰C
For a reaction , 2NOCl(g) ⇌ 2NO(g) + Cl₂(g), Kc at 427⁰C is 3 ˣ 10⁻⁶ mol⁻¹ L. The value of Kp is nearly
Options
(a) 7.50 ˣ 10⁻⁵ (b) 2.50 ˣ 10⁻⁵ […]
When 10 mL of 0.1 M acetic acid (pKa = 5.0 ) is titrated against 10mL of 0.1 M
When 10 mL of 0.1 M acetic acid (pKa = 5.0 ) is titrated against 10mL of 0.1 M ammonia solution (pKb = 5.0),the equivalence point occurs at pH
Options
(a) 5 (b) […]
Of the following, which change will shift the reaction towards the product
Of the following, which change will shift the reaction towards the product? I₂(g) ⇌ 2 I(g) , ΔH°r (298 K) = 150 kJ
Options
(a) increase in concentration of I (b) decrease in […]
What is the pH of 0.01 M glycine solution? For glycine, Ka₁ = 4.5 ˣ 10⁻³
What is the pH of 0.01 M glycine solution? For glycine, Ka₁ = 4.5 ˣ 10⁻³ and Ka₂ =1.7 ˣ 10⁻¹⁰ at 298 K
Options
(a) 3 (b) 10 (c) 6.1 (d) 7.2
For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
Options
(a) standard free energy change is equal to zero (ΔG⁰ = 0) (b) free energy change is less then zero […]