| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 21 Mar 2008 23:22:23 IST
|
|
|
coul dany1 explain 2 me how is cuO a base and sO3 an acid i no its kiddish but i need a complete explanation
|
|
|
|
|
|
|
|
not sure, but CuO gives OH- ions in solution,
and SO3 forms sulphuric acid in solution
|
" Always remember money isn't everything but make sure you have made a lot of it before talking such nonsense!"
- Bill Gates |
this reply: 6 points
(with 0 
in 3 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:27:16 IST
|
|
|
CuO is a METAL oxide and, in aqueous state, it has the tendency to give OH- ions by forming Cu(OH)2 as akhil_o said...
SO3 is a non metal oxide and in aquoues state, forms H2SO4 which give H+ ions freely..
|
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha. |
this reply: 4 points
(with 0
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:29:00 IST
|
|
|
acids form hydrogen ions in water. bases form hydroxide ions (OH with a negative one charge) in water.
CuO, which is copper II oxide, will form neither.
in chemistry, a salt is any ionic compound, made from a metal cation and a non-metal anion. CuO is a salt, but not one to eat.
|
THINK BIG!
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
    
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:29:27 IST
|
|
|
but they act as an acid and base even without medium
|
RESPECT UR TIME
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:33:33 IST
|
|
|
interesting tip to find whether an oxide is a basic/acidic oxide:
add a molecule of water and see if the compound has a OH- grp or H+ grp
for example, SO3 --> on adding H20 we get H2S04
similarly, CuO ----> Cu(OH)2
other examples which this trick works is SO2, BaO,NO2, etc..
|
JEE and OLYMPIA INFINATUM
http://iit-redefined.theforum.name/index.php
join the revolution!! |
this reply: 2 points
(with 0
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:34:09 IST
|
|
|
avi has said the correct trend but if u want more reasoning nudge me
|
all the best ... |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:37:37 IST
|
|
|
@arpan1...
dude...u shud share ur ideas and explanations here...why need a nudge...ur explanation will b appreciated if u post it direcltly in the thread...
|
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha. |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:40:47 IST
|
|
|
Dont do all these stuff here... Dis can be done on nudge book.. Ne1 got how to tell if a specie is basic , acidic or neutral...
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:43:29 IST
|
|
|
there are two ways...
first...check the stability of conjugate base...if its quite stable..then it is a strong acid...
second..check whether the specie is deficient or rich of electrons..if deficient..then it acts as acid(lewis)...
one more...more is the ionisation of H+ ions in aquoues medium...stronger is the acid.
|
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha. |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:47:00 IST
|
|
|
hey i think conjugate of strong acid is weak base...
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:49:09 IST
|
|
|
yaa..that is ryt...but i dint say...strong base...i said "more stable specie"
|
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha. |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:49:48 IST
|
|
|
and the conjugate here i m refering is formed after the compound has lost 1 H+ ion///
|
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha. |
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:50:25 IST
|
|
|
na u said na if the conjugate base is quite stable.. the lewis acid is stable too
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Mar 2008 23:52:58 IST
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
1
