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i) X – Rhombic
Y – Monoclinic
ii) I) Mg has a higher affinity for combined oxygen than S.
II) Add dilute nitric acid to the mixture. It reacts with MgO to form Mg (NO3)2
Filter to obtain S as residue.
maurice.mutuku answered the question on October 24, 2019 at 07:45
- 6.0 dm3 of sulphur (IV) oxide were oxidized by oxygen to sulphur (VI) oxide.
(i) Write an equation for the reaction.
(ii) Calculate the number of moles...(Solved)
6.0 dm3 of sulphur (IV) oxide were oxidized by oxygen to sulphur (VI) oxide.
(i) Write an equation for the reaction.
(ii) Calculate the number of moles of sulphur (IV) oxide and oxygen used at R.T.P.
(iii) Determine the volume of oxygen used.
(Molar volume of a gas at R.T.P. is 24.0 dm3)
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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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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Date posted: October 24, 2019. Answers (1)
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Date posted: October 24, 2019. Answers (1)
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that follow:(Solved)
The set-up below is used to prepare dry sulphur (IV) Oxide in the laboratory. Answer questions
that follow:
(a) Identify the mistake in the set-up
(b) Write an equation for the reaction in the set-up
(c) State how the polluting effects of the gas on the environment can be controlled
Date posted: October 24, 2019. Answers (1)
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(ii) Explain your answer in (i) above.
Date posted: October 24, 2019. Answers (1)
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(a) Calculate the molarity of this acid
(b) Determine the volume of commercial acid in (a) above that can...(Solved)
Commercial sulphuric acid has a density of 1.8gcm3
(a) Calculate the molarity of this acid
(b) Determine the volume of commercial acid in (a) above that can be used to prepare
500cm3 of 0.2M H2SO4 solution
Date posted: October 24, 2019. Answers (1)
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(b) Identify:-
(i) Gas A
(ii) Liquid B
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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(b) Write formula of the complex ion present in the colourless solution Q
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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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At 113oC it melts into light brown liquid. The liquid then darkens to...(Solved)
When sulphur powder is heated to over 400oC the following changes are observed:-
At 113oC it melts into light brown liquid. The liquid then darkens to become reddish-brown
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Date posted: October 24, 2019. Answers (1)
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The diagram below was used to investigate the reaction between nitrogen(I)oxide and copper turnings. Study it and answer the questions that follow:
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b) Write a chemical equation for the reaction that took place in the combustion tube
c) State one use of gas P
Date posted: October 24, 2019. Answers (1)
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The diagram below represents an in complete set-up for preparation of a dry sample of gas R
a) Complete the set-up to show how a dry sample of gas R is collected
b) Write a chemical equation for the reaction that produces gas R
Date posted: October 22, 2019. Answers (1)