The reaction between magnesium and hydrochloric acid? How does the concentration of HCL affect it?


Posted on : 09-10-2013 | By : My Study Coach | In : Improve Your Concentration
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How does the concentration affect the rate of reaction? What patterns can you see and explain why? Link all this to the collision theory in detail!

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Comments (2)

Mg + 2HCl >> MgCl (s) + H2

A metal plus an acid react to form a precipitate and hydrogen gas.
Concentration affects the number of moles of product and the rate of reaction.
The more molecules you have in a container (higher concentration) the more likely it is that the activation energy will be overcome and that a successful reaction will occur.
(that’s basically collision theory)
Anyway it would help to put some numbers in to explain your answer but I’m not going to do your homework for you. Try a chemistry for students website- some have animations and other cool stuff which helps. Even youtube sometimes has funny videos and songs to help you understand.

i’ll try my best :)

the hydrochloric acid affects the mAGNESium ribbon by kindof dissolving it/ breaking it down.
if you place the magnesium and HCL into a test tube you will find that the test tube will heat up, produce a fowl smell, make a kindof bubbly noise and produce a misty smoke.

the magnesium ribbon will slowly dissolve into the HCL.

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