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Chem Revision Essay

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Below is an essay on "Chem Revision" from Anti Essays, your source for research papers, essays, and term paper examples.

1. An aqueous solution of which of the following reacts with magnesium metal?
A. Ammonia
B. Hydrogen chloride
C. Potassium hydroxide
D. Sodium hydrogencarbonate
(Total 1 mark)


2. Which is a buffer solution?
I. 0.01 mol dm–3 HCl, 0.01 mol dm–3 NaCl
II. 0.01 mol dm–3 CH3COOH, 0.01 mol dm–3 CH3COONa
A. I only
B. II only
C. Both I and II
D. Neither I nor II
(Total 1 mark)


3. Define the terms strong acid and weak acid. Using hydrochloric and ethanoic acid as examples, write equations to show the dissociation of each acid in aqueous solution.
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(Total 4 marks)



4. (i) Calcium carbonate is added to separate solutions of hydrochloric acid and ethanoic acid of the same concentration. State one similarity and one difference in the observations you could make.
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(2)

(ii) Write an equation for the reaction between hydrochloric acid and calcium carbonate.
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(2)

(iii) Determine the volume of 1.50 mol dm–3 hydrochloric acid that would react with exactly 1.25 g of calcium carbonate.
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(3)


(iv) Calculate the volume of carbon dioxide, measured at 273 K and
1.01×105 Pa, which would be produced when 1.25 g of calcium carbonate reacts completely with the hydrochloric acid.
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"Chem Revision". Anti Essays. 14 Dec. 2018

<http://snehaedu.com/free-essays/Chem-Revision-546078.html>

APA Citation

Chem Revision. Anti Essays. Retrieved December 14, 2018, from the World Wide Web: http://snehaedu.com/free-essays/Chem-Revision-546078.html