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#Post#: 813--------------------------------------------------
Major acids
DIR By: Shiva
Date: October 5, 2012, 1:33 pm
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Among three major acids, hydrochloric, sulfuric and nitric,
which one you use it often and why? and which one use rarely and
is there a particular reason for it? This is an interesting
question. Because, your answer will tell how you see the
chemistry and how much you understood it.
#Post#: 814--------------------------------------------------
Re: Major acids
DIR By: Michel
Date: October 5, 2012, 3:39 pm
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Sulfuric is by far the most useful for me
#Post#: 816--------------------------------------------------
Re: Major acids
DIR By: Chris
Date: October 5, 2012, 4:08 pm
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H2SO4...best for acidifying reagents, not easily oxidized, most
important acid :D
#Post#: 823--------------------------------------------------
Re: Major acids
DIR By: aiswarya c
Date: October 5, 2012, 11:35 pm
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i use Hydrochloric acid the most.as it is usually useful for
many reactions that is to be conducted by my students in
highschool. Nitric acid is rarely used.
#Post#: 837--------------------------------------------------
Re: Major acids
DIR By: Shiva
Date: October 7, 2012, 3:38 am
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Well, expected answers so far hehe. Undoubtedly, sulfuric acid
is one of the most useful chemicals. Hence, we called it as
"King of Chemicals" As it is one of the very strong acids, it
does react with compounds of acids which are weaker than
sulfuric acid and displace them from their salts. Hence, it is
very useful in preparing other acids. Not only this, there are
tonnes and tonnes of uses by sulfuric acid. The remaining 2
counterparts, hydrochloric acid and nitric are also extremely
useful. But, all these three acids have some unique properties
and also have some similar properties among them. I’ve listed
such properties below (in a table) so that you can understand
which one we are using mostly at lab and why.
Metals with Concentrated hydrochloric acid:
HTML http://www.youtube.com/watch?v=ZJ21Wrj0gYo&list=UUKw8yPCktJvvl50dvLX6u7g&index=25&feature=plcp
Sorry, I do not know how to insert a table here, giggles! so me
attached the table as an image.
Metals with Concentrated Sulfuric acid:
HTML http://www.youtube.com/watch?v=38UV0j2Z9yw&list=UUKw8yPCktJvvl50dvLX6u7g&index=27&feature=plcp
Of course, we do not use Nitric acid much because of the above
properties and it is not used for detecting ions much. But, it
is a very very important acid used in Industries and have tonnes
and tonnes of uses like manufacturing fertilizers, explosives
etc…
Both hydrochloric and sulfuric acid are almost used equally in
labs. Both are very useful in detecting ions. But, when comes to
preparing gases such as hydrogen, carbondioxide etc.. we mostly
go with hydrochloric acid as it is a cheap acid and also does
not precipitate salts with some alkaline earths unlike sulfuric
acid and also it is not very corrosive like sulfuric acid. It is
something like we using Sodium hydroxide very often than
potassium hydroxide even though they two have almost similar
properties. We just prefer NAOH over KOH since it is cheap and
less corrosive than KOH.
Magnesium and Copper with Nitric acid:
HTML http://www.youtube.com/watch?v=XjE--fMP4yc&list=UUKw8yPCktJvvl50dvLX6u7g&index=35&feature=plcp
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