Question

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Answer 1

Answer:

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Answer 2

Answer:

1.) Indicators are weak inorganic compounds which change color in accordance with the pH of the solution. The three most common indicators are: Litmus, Methyl orange and Phenolphthalein.

2.) In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such as formic and lactic acids are miscible in water, but higher molecular mass organic acids, such as benzoic acid, are insoluble in molecular (neutral) form.

3.) (i) Hydrochloric acid (HCL)

(ii) Sulphuric acid (H2SO4)

(iii) Nitric acid (HNO3)

4.)The strong acids are hydrochloric acid, nitric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, perchloric acid, and chloric acid. The only weak acid formed by the reaction between hydrogen and a halogen is hydrofluoric acid (HF).