Add 100cm3 of 2M potassium hydroxide or 200cm3 of 1M potassium hydroxide to the acid.
Heat the solution until it is saturated and cool to obtain crystals. Dry the crystals between filter papers.
maurice.mutuku answered the question on October 25, 2019 at 06:40
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In an experiment to determine solubility of sodium chloride, 10.0 cm3 of a saturated solution of sodium chloride weighing 10.70g were placed in a volumetric flask and diluted to a total of 500cm3. 25.0 cm3 of the diluted solution of sodium chloride reacted completely with 24.0 cm3 of 0.1M silver nitrate solution.
I. Calculate;
(i) Moles of silver nitrate in 24.0 cm3 of solution.
(ii) Moles of NaCl in 25.0 cm3 of solution.
(iii) Moles of NaCl in 500 cm3 of solution.
(iv) Mass of NaCl in 10.0 cm3 of saturated sodium chloride (Na = 23, Cl = 35.5)
(v) Mass of water in 10.0cm3 of saturated solution.
(vi) The solubility of NaCl in g/100g of waters.
Date posted: October 25, 2019. Answers (1)
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and each mixed with equal volume of soap solution....(Solved)
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Date posted: October 25, 2019. Answers (1)
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Date posted: October 25, 2019. Answers (1)
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(i) Containing water
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Date posted: October 25, 2019. Answers (1)
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(c) Explain what happens to coloured petals when dropped into a solution of M
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Date posted: October 24, 2019. Answers (1)
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Date posted: October 24, 2019. Answers (1)
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Date posted: October 24, 2019. Answers (1)
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(i) Name the catalyst in this reaction
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I. Increasing the pressure
II. Using a catalyst
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Date posted: October 24, 2019. Answers (1)
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(a) (i) Complete the diagram to show how the gas was collected
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I. Solid H
II. Solid I
(iii) Write an equation for the reaction that occurred in the flask between solid H and dilute Hydrochloric acid
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(i) the colour of the solution changed from reddish-brown to green and
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Date posted: October 24, 2019. Answers (1)
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Date posted: October 24, 2019. Answers (1)
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(i) Write an equation for the reaction.
(ii) Calculate the number of moles...(Solved)
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(ii) Calculate the number of moles of sulphur (IV) oxide and oxygen used at R.T.P.
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Date posted: October 24, 2019. Answers (1)
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