Calculate the solubility product ksp of both

Question

1. (Solubility)

The solubility of silver chloride, AgCl, is 1.26 x 10^-5 M at 25 °C.

The solubility of barium fluoride, BaF₂, is 3.15 x 10^-3 M at 25 °C.

Calculate the solubility product, K_sp, of both compounds.

2. The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

A.1/6  B.1/3  C.1/8  D.1/4

3. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

A.1.8 gram of H₂O

B.12 moles of KMnO₄

C.0.6N H₂SO₄

D.4.6 gram of C₂H₅OH

4. What is the pH of a 0.025 M solution of Hydrobromic Acid?

5. Estimate the change in enthalpy, ΔH, for the following reaction:

 H₂ (g) + Cl₂ (g) → 2 HCl (g)