Recent questions in Chemistry Form 4

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What is the formula of products of a mixture of Ethanol and Butanoic acid with few drops of sulphuric (vi) acid?

asked Jan 7 in Chemistry Form 4 by 0725522XXX

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2 answers

what is an acid anhydride?

asked Mar 17, 2022 in Chemistry Form 4 by istanbul

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A sample of polymer has a molecular mass of 63600. Calculate the number of monomers in the sample

asked Jan 12, 2022 in Chemistry Form 4 by sostenah

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3 answers

Write the equation for the reaction between propanol and propanoic acid

asked Jan 10, 2022 in Chemistry Form 4 by PiusMusomi

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1 answer

What is the function of acetylcholine?

asked Sep 4, 2021 in Chemistry Form 4 by Nater

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3 answers

Give the condition and the reagent under the ethanol is converted to ethanoic acid

asked Aug 29, 2021 in Chemistry Form 4 by kagiri

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4 answers

Give two reasons why wood and charcoal are chosen for domestic heating.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Define heat value of a fuel.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

The diagram below shows an energy level diagram for the formation of magnesium chloride. Study it and answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Distinguish between hydration energy and lattice energy.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

State Hess’s law.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

During electrolysis of aqueous copper (II) sulphate using copper electrodes a current of 0.2 amperes was passed through the cell for 5 hours. Determine the change in mass of the cathode that occurred as a result of the electrolysis process. (Cu = 64, IF = 96500 coulombs).

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Aqueous copper (II) sulphate was electrolysed using the set up below.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Use the standard electrode potentials for elements A, B, C, D and F given below to answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

When bromine is dissolved in water the equilibrium shown below is established.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Explain why aqueous sodium chloride is not suitable as an electrolyte for the manufacture of sodium in the Downs process.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Below is a simplified diagram of the Down’s cell used for the manufacture of sodium. Study it and answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

Electrode potentials for the half cells are shown below. Use the information to answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

An element F has a relative atomic mass of 88. When a current of 0.5 amperes was persed through the fused chloride of F for 20 minutes and 20 seconds, 0.278g of F were deposited at the cathode. Determine the charge on ion of F (1Faraday = 9650ºC).

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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1 answer

What is a binary electrolyte.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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