what happens in a reaction with chlorine and potassium iodide ions 74816

Name: what happens in a reaction with chlorine and potassium iodide ions 74816
Uploaded: 2020-11-05T09:35:28-08:00
Duration: 2 min 21 s
Channel: Vishal Sharma
Description: what happens in a reaction with chlorine and potassium iodide ions 74816

What happens in a reaction with chlorine and potassium...

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Write the equation for each reaction described. Follow your instructor's advice about whether state symbols should be included. Chlorine gas is bubbled through an aqueous solution of potassium iodide.

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When chlorine gas is bubbled into aqueous potassium iodide solution, a redox reaction occurs. Give the ionic equation for this reaction. State symbols are not required. In a further experiment, 0.50 mol of chlorine gas was bubbled into an aqueous solution containing a mixture of 0.66 mol of sodium iodide and 0.66 mol of sodium bromide. Assuming that all the chlorine gas reacted, calculate the number of moles of iodine and bromine produced. Justify your answer in terms of the relative reducing power of bromide and iodide ions.

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Chlorine with potassium iodide and potassium bromide solutions Take 5 mL of 0.20 mol L⁻¹ potassium iodide solution in a test tube and add no more than 10 to 20 drops of chlorine water (water through which Cl₂ gas has been passed). Record your observations. Repeat this experiment using 5 mL of 0.20 mol L⁻¹ potassium bromide instead of potassium iodide. Again, record your observations. Now add 3 mL of FLAMMABLE petroleum ether to each test tube and shake the two-phase mixtures by flicking the base of the test tubes several times. Record the colours of the upper organic phases. The colours are characteristic of molecular iodine and bromine in hydrocarbon solvents. Colour of solution after adding Cl₂(aq) with KI solution: Orange with KBr solution: Yellow Colour of organic phase after extraction with KI sample: Pink with KBr sample: Light Orange 1. What is the balanced net ionic equations for the reactions of chlorine with iodide and bromide ions? Net reaction with I⁻ Net reaction with Br⁻ 2. What have you have learnt from the colour changes and net reaction equations above?

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