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A volume of 15cm³ of ethane gas was exploded with 50cm³ of oxygen. If both volumes were measured at the same temperature and pressure, calculate...

A volume of 15cm³ of ethane gas was exploded with 50cm³ of oxygen. If both volumes were measured at the same temperature and pressure, calculate the volume of resulting gaseous mixture.

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Kavungya answered the question on May 24, 2019 at 12:34

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Bottle of sodium carbonate, sodium chloride and sugar have lost their labels. A student prepares and tests an aqueous solution of a sample of each... (Solved)

Bottle of sodium carbonate, sodium chloride and sugar have lost their labels. A student prepares and tests an aqueous solution of a sample of each bottle. The results obtained are as shown below.

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Date posted: May 24, 2019 . Answers (1)
Study the scheme below and answer the questions that follow. a) Draw the structure of polymer P. b) Identify compound S. c) Give the reagents and... (Solved)

Study the scheme below and answer the questions that follow.

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Date posted: May 24, 2019 . Answers (1)
An element Q has a relative atomic mass of 88. When a current of 0.5A was passed through the fused chloride of Q for 32 minutes... (Solved)

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Date posted: May 24, 2019 . Answers (1)
The electronic structures for elements represented by letters A, B, C and D are A - 2.8.6 B - 2.8.2 C - 2.8.1 D - 2.8.8 a)... (Solved)

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Date posted: May 24, 2019 . Answers (1)
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Metal S removes oxygen combined with P. Q reacts with an oxide of R and not with an oxide of P. P reacts with cold... (Solved)

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Date posted: May 24, 2019 . Answers (1)
Below are PH values of some solutions. i) Which solution is likely to be I. acidic rain II. Potassium hydroxide ii) A basic substance V... (Solved)

Below are PH values of some solutions.

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The diagram below is a section of a model of the structure of element T. a) State the type of bonding that exist in T. b) In... (Solved)

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Date posted: May 24, 2019 . Answers (1)
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Date posted: May 24, 2019 . Answers (1)
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Date posted: May 24, 2019 . Answers (1)
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Date posted: May 24, 2019 . Answers (1)
When sulphur is heated in a boiling tube in the absence of air, the yellow crystals melts into a golden yellow mobile liquid at 113°C. The... (Solved)

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Date posted: May 23, 2019 . Answers (1)
Use dots (•) and cross (×) diagrams to draw bond in: a) Al₂Cl₆ (Al = 13, Cl=17) b) Al₂O₃ (Al = 13, O = 8) (Solved)

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Date posted: May 23, 2019 . Answers (1)
Calculate the number of molecules of water of crystallization in oxalic acid crystals, H2C2O4.nH2O given that 5g of the crystals were made upto 250cm³ of this... (Solved)

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Date posted: May 23, 2019 . Answers (1)
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Date posted: May 23, 2019 . Answers (1)
Magnesium reacts as shown below. a) Identify gas X. b) Between wet sand and magnesium ribbon, which one should be heated first? Explain. (Solved)

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Date posted: May 23, 2019 . Answers (1)
The diagram below was used to electrolyse magnesium sulphate solution a) Write half equation at electrode. P,Q b) State what happens to the concentration of the... (Solved)

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Date posted: May 23, 2019 . Answers (1)
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Date posted: May 23, 2019 . Answers (1)
0.63g of lead powder were dissolved in excess nitric (V) acid to form lead (II) nitrate solution. All the lead (II) nitrate was then reacted with... (Solved)

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Date posted: May 23, 2019 . Answers (1)
Study the scheme below and answer the questions that follow. a) Write the formular of the cation present in solution D. b) What property of chlorine is... (Solved)

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Date posted: May 23, 2019 . Answers (1)