(a) A-H2S03 - sulphuric IV acid
B - K2SO3 - potassium sulphite
(b) Oxidising property
maurice.mutuku answered the question on September 18, 2019 at 06:12
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 18, 2019. Answers (1)
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Date posted: September 17, 2019. Answers (1)
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Date posted: September 17, 2019. Answers (1)
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Date posted: September 17, 2019. Answers (1)
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Date posted: September 17, 2019. Answers (1)
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(ii) Write the cell equation for a cell formed by connecting W and X cells.
(iii) Calculate the e.m.f of cell in a(ii) above.
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(i) Write the equation for the reaction which took place at the anode.
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Date posted: September 17, 2019. Answers (1)
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Date posted: September 17, 2019. Answers (1)
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100cm3 of0.05M Sulphuric (VI) acid were placed in the flask and small quantity of potassium Carbonate added. The mixture was boiled to expel all carbon (IV) oxide. 25cm3 of the resulting solution required 18cm3 of 0.1M potassium hydroxide solution to neutralize it. Calculate the mass of potassium carbonate added. (K = 39, O = 16, C = 12)
Date posted: September 17, 2019. Answers (1)
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a) Calculate...(Solved)
12.3.0g of an organic compound containing Carbon, hydrogen and oxygen only produced 4.4g of Carbon (IV) oxide and 1.8g of water on complete combustion.
a) Calculate its empirical formula.
b) Calculate in molecular formula if its formula mass is 60.
Date posted: September 17, 2019. Answers (1)
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The products formed by action of heat on nitrates of element X, Y and Z are shown below.
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b) Which element forms a soluble carbonate?
c) Give an element that can be Y.
Date posted: September 17, 2019. Answers (1)
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b)Give two reasons why electroplating is necessary.(Solved)
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b)Give two reasons why electroplating is necessary.
Date posted: September 17, 2019. Answers (1)