Today, we are going to look into the properties of Acids. In Chemistry learning, whenever we talk about properties, we will always look into both the Physical & Chemical Properties of the substances.
PHYSICAL PROPERTIES OF ACIDS:
1. Acids have a SOUR taste
2. All acids are SOLUBLE in water
3. Acids solutions turn BLUE litmus paper RED
4. Acid solutions have a pH values < 7
5. Most acid solutions are CORROSIVE
6. All dilute acids CONDUCT ELECTRICITY due to the presence MOBILE IONS in solution
So far so good on the Physical Properties of Acids, now let’s look on the Chemical Properties then..
CHEMICAL PROPERTIES OF ACIDS:
1. React with reactive metals (above H in Reactivity Series) to form Salt & Hydrogen Gas
2. React with Metal Carbonates to form Salt, Carbon Dioxide & Water
3. React with Bases/Alkali to form Salt & Water (Neutralistion Reaction)
Is this GOOD or GOOD??? Let us know see how much you have learnt, by checking out some exam-based questions.
Quick Check 1:
Name the products of the following reactions:
(i) zinc + hydrochloric acid
(ii) iron + sulphuric acid
Quick Check 2:
Which property does hydrochloric acid have?
A. It liberates ammonia from ammonium salts
B. It reacts with any base to give a salt
C. It reacts with any metal to give a hydrogen
D. It turns red litmus paper blue
Quick Check 3:
Which substance is not used to prepare zinc chloride by reaction with hydrochloric acid?
A. zinc carbonate
B. zinc hydroxide
C. zinc nitrate
D. zinc oxide
PS: Do leave your suggested answers in the “Comments Section” directly below this post.
PPS: This post belongs to a series of blogposts that is associated with Secrets of “Acids, Bases & Salts and Qualitative Analysis revelaed”
this site is extremely helpful. it helps me alot with homework i don’t understand.
Reply
sean Reply:
September 8th, 2008 at 12:47 pm
Thanks Natalie for the encouraging words.
I am glad students like you are benefitting from this Chemistry Blogsite.
Until maybe next year, where i will start Online Coaching for overseas students, that is what i can help overseas students for the time being.
For those students based in Singapore, i can do more for them as i am running public Chemistry workshops & intensive revision bootcamps to complement what they have learned in schools, and sometimes to add on something interesting for them, so to make learning Chemistry more fun, more easily.
Btw, where are you from and which educational system do you follow?
For Singapore, we subscribe to Cambridge GCE O Levels.
Rgds
Sean
Master Trainer
Reply
thank you!!!!!!!!!!! very very helpful
Reply
sean Reply:
April 24th, 2009 at 4:31 pm
Hi Yogi,
I am glad this humble chemistry blogsite is helpful towards ur learning.
Do check out our recent blogposts.
See you around participating =)
To Your Academic Success in Chemistry,
Sean Chua
Master Trainer & Author
WINNERS Education Group
“Experience Learning with A Difference”
Reply
I had forgotten my book at school and had test the next day this website really helped me preparing for that because i got all the related stuff i needed….Thankyew verry much! keep roking
Reply
rija Reply:
April 24th, 2009 at 1:38 am
shafia are you from pk?
Reply
sean Reply:
April 24th, 2009 at 4:30 pm
Hello Shafia Hassan,
I am glad this humble chemistry blogsite is helpful towards your mastering of Chemistry.
Check out other recent blgoposts and do participate in the discussions.
See you around!
To Your Academic Success in Chemistry,
Sean Chua
Master Trainer & Author
WINNERS Education Group
“Experience Learning with A Difference”
Reply
hey… dis site is really helpful. especially 4 students like me, who r really scared of chem.
Reply
sean Reply:
November 1st, 2009 at 12:11 am
Hi Rashika,
I am glad you find this chemistry blogsite helpful to you.
Chemistry is in fact very enjoyable and enriching. But you must be open to accept the concepts behind it.
Enjoy!
Reply
sir can u plz provide me the notes of chem gce o levels ! i am from pakistan! i would be very thankful to u!
Reply
Hi HI!
These are my answers, hope you can grade them please!
Quickcheck 1:
(i) zinc chloride
(ii) iron (II)sulfate
Quickcheck 2:
B
Quickcheck 3:
C
Reply
sean Reply:
November 1st, 2009 at 12:13 am
Hi Lavender,
Quickchecks 2 and 3 are correct!
For quickcheck 1, the name of the salt produced are correct but you forget that there will be hydrogen gas produced also in such reactions.
Hope you find this useful.
Reply
i) zinc chloride
ii) iron (II) sulfate
2)B
3)C
Reply
sean Reply:
November 1st, 2009 at 12:14 am
Hi soup,
please see my reply to “Lavender”.
Thanks.
Reply
Answrs:
i) Zinc chloride
ii) Iron Sulfate
2) B
3) D
Reply
sean Reply:
November 1st, 2009 at 12:14 am
Hi Mustafa,
please see my reply to “Lavender”.
Thanks.
Reply
There are a few more chemical properties of acids which I would like to be displayed:
1)Acids are compounds containing hydrogen as one of the elements.
2)Acids also react with water to give hydronium ions and acid radical.
Anyway this site is very helpful.
Thanks a lot.
Reply
sean Reply:
May 5th, 2010 at 11:38 pm
Hi Mohammed Talha,
Good to see you adding on some other properties.
For your Point 1 – Do note that NOT all compounds that have hydrogen atoms are Acids.
Cheers,
Sean Chua
Reply
My answers are 1) zinc chloride + hydrogen gas iron11susulphate + hydrogen gas. 2) B 3) c i love this chemistry lessons and i need more of it
Reply
sean Reply:
May 5th, 2010 at 11:39 pm
Hi Ehis,
Thanks for the encouragement!
We are improving this chemistry website for Basic Chemistry students to benefit more through self-questioning and participative mode.
To Your Academic Success in Chemistry,
Sean Chua
Master Trainer & Author
Reply
my answers are:
1-zinchloride+hydrogen and ironsulphate+hydrogen
2-B OR C–( i think both are correct please help me which one is not correct and why)
3-C
Love thos site…it helps a lottt!!
Reply
sean Reply:
May 5th, 2010 at 11:40 pm
Hi Ehis,
Thanks for the encouragement!
You can check the answers above (my reply to others).
To Your Academic Success in Chemistry,
Sean Chua
Master Trainer & Author
Reply
Very cool site because the notes are simple .
Reply
This site is really useful . It helps me alot with my hw ^-^
Reply
This site made me understood Acids & its properties. Thanks and keep it up.
Reply
Hi,
Can you explain the answer for quickcheck 3?
Thanks
Reply