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Chemistry
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Why can endothermic reactions occur spontaneously if the entropy change is negative for a cooling process?

An endothermic process is one which cools as the reaction proceeds meaning that the entropy change of the reaction will be negative. These reactions may still be feasible as the spontaneous nature of a re...

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Answered by Eve R. Chemistry tutor
16289 Views

Explain why graphite is able to conduct electrcity and diamond is not

Carbon in graphite has three bonds, where as the carbon atoms in diamond form four bonds to one another. As carbon has 4 electrons in its outer shell, this means graphite has one free electron which is ab...

QJ
Answered by Qasim J. Chemistry tutor
8086 Views

Give the reagents and conditions needed to convert a secondary alcohol into a ketone. Name the process which occurs during the conversion.

Reagents: Potassium dichromate and concentrated sulfuric acid (catalyst) Conditions: Heat under reflux The process which happens when a secondary alcohol is converted to a ketone is called oxidation.

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Answered by Lucy S. Chemistry tutor
4510 Views

name the type of bonding in a molecule of water.

covalent

CN
Answered by Charlie N. Chemistry tutor
2952 Views

A sample of hydrochloric acid has a pH of 2.34. 
Write an expression for pH and calculate the concentration of this acid.

pH = -log([H+])

Therefore, 10^(-pH) = [H+]

[H+] = 4.57x10^-3

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Answered by Charlie N. Chemistry tutor
11009 Views

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