Chemistry Questions and Answers

During the electrolysis of dilute tetraoxosulphate (VI) acid solution 0.05 mole of electrons were passed what volume of gas was produced at the anode? (Gaseous molar volume = 22. 4dm³ at s.t.p)

The reaction represented by the equation C_(s) + H₂O_(l) → CO_(s) + H _2(s) was carried out at 27_oC if the enthalpy change was + 4500 J and the entropy change was + 12J, what was the free energy change? (∆G = ∆H - T∆S)

The complex salt formed when aluminium dissolves in sodium hydroxide solution is

When copper (ll) chloride solution is treated with excess aqueous ammonia, a deep blue solution results This is due to the presence of

Which of the following is a waste product in the Solvary Process for the manufacture of sodium trioxocarbonate (IV)?