ACH3701 ASSIGNMENT % TRUSTED workings, explanations and solutions. For assistance call or us on . Assignment due date: 2023 Assignment unique number: 1. Estimate the solubility of calcium carbonate at 25oC in the presence of 0.09M CaCl2(aq). [7] 2. Will BaSO4 precipitate from a solution containing 1.5 x10-4 M Ba+2, barium ion, if enough soluble salt, Na2SO4, is added to make the solution 2.5 x10-4 M in SO4 -2? [7] 3. Describe oxidation reaction and use a rust of iron as an example. [5] 4. Describe the formation of a char coal. Motivate your answer with chemical reactions. [5] 5. List three possible disadvantages when a car owner replaces the manufacturer’s recommended gasoline with methanol. [3] 6. Consider a galvanic cell consisting of 5Fe2+(aq) + MnO4 −(aq) + 8H+(aq) ⟶ 5Fe3+(aq) + Mn2+(aq) + 4H2O(l)
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