pH experiemtn with CO2 and water (1 Viewer)

[acmilan]

Does anyone who did the experiment with the calcium pebbles and hydrochloric acid and distilled water remeber how much of each they used. Also does anyone know the reaction that occurs in this experiment

 

[Calculon]

2HCl(aq)+CaCO₃(s)-->CaCl₂+CO₂(g)+H₂(g)
EDIT: wtf no HTML
*puts fist through monitor

 

[acmilan]

thanks

 

[acmilan]

does anyone know the specific quantity to use of each material?

 

[CM_Tutor]

Calculon's equation should be H2O at the end, not H2

 

[~*HSC 4 life*~]

Originally posted by Calculon

*puts fist through monitor

ouch

 

[CM_Tutor]

Originally posted by Calculon
EDIT: wtf no HTML
*puts fist through monitor

Originally posted by ~*HSC 4 life*~
ouch

Possibly Calculon needs to Maintain a better Balance between anger and control, or else a Search for Better Health will be needed.

 

[acmilan]

whats (aq) stand for?

 

[CM_Tutor]

(aq) stands for aqueous - it means that the HCl (in this case) is dissolved in water.

 

[xiao1985]

Originally posted by Calculon

EDIT: wtf no HTML
*puts fist through monitor

Originally posted by ~*HSC 4 life*~
ouch

Originally posted by CM_Tutor
Possibly Calculon needs to Maintain a better Balance between anger and control, or else a Search for Better Health will be needed.

lolz, classic =D

jsut a note... do NOT put mroe than ~5 g of grained caco3 to react with acid... it MAY be alot dangerous than you think... we got this comment from our bio teacher:
"xiao, do NOT continue this asmt... you are either making a rocket, or a bomb..."
we went :$ lolz... twas an asmt as well!!! he's nto meant to say any thing!!! =p

 

[acmilan]

So what your suggestion on the amount of HCl, calcium pebbles and distilled water to use?

 

[xiao1985]

if the caco3 is in pebble form, then it doesn't really matter... whereas, if you have powdered caco3, then don't use more than 2 grams i say... or else, it turns into some thing nasty...

 

[babydoll_]

Originally posted by CM_Tutor
Possibly Calculon needs to Maintain a better Balance between anger and control, or else a Search for Better Health will be needed.

HAHAHAHAH OMG
BIOLOGY HUMOUR!

Ahem anyway. Sorry I can't help. I did my prac quite differently... we blew into water using a straw, and the CO2 in our breath changed the pH and made the water acidic...

 

[Zarathustra]

At my schools we blew into a straw to change the pH and also used CaCo3 - then compared - i.e. why the pure CO2 was more valid.

 

[kimmeh]

Originally posted by Zarathustra
At my schools we blew into a straw to change the pH and also used CaCo3 - then compared - i.e. why the pure CO2 was more valid.

much more simpler and easier we used the CaCo3 to prove that we were exhaling Co2.