CHEMISTRY V1 DISCUSSION!

[svenas]

I need the answer for the first question last part saying effect of heating??

 

[Razzle-Dazzle]

We're not supposed to discuss yet. But speaking purely theoretically, heating usually has an effect on the rate of reaction.

 

[Saadiya Ahmed]

I need the answer for the first question last part saying effect of heating??

crystals will be formed....i guess! :/
tht's at i wrote..

 

[phantom]

Water evaporates, solution becomes more saturated, crystals form, not sure if its the complete answer though.

 

[svenas]

I wrote water evaporates leaving the anhydous powder....

 

[tribianni]

heyy wt about the chkng of purity of the cafiene crystals??
chromatogrphy or melting point????

 

[svenas]

heyy wt about the chkng of purity of the cafiene crystals??
chromatogrphy or melting point????

I wrote melting point...u??

 

[tribianni]

i wrote chromatography ...maybe u r ryt

 

[Saadiya Ahmed]

heyy wt about the chkng of purity of the cafiene crystals??
chromatogrphy or melting point????

now tht u mention it..i think its supposed to be chromatography...though i wrote the melting point!! :/

 

[thats_me]

heyy wt about the chkng of purity of the cafiene crystals??
chromatogrphy or melting point????

chromatography

 

[tribianni]

chromatography

i wrote dat too

 

[thats_me]

i wrote dat too

hope its correct

 

[Abu mota]

What about copper can ? I wrote that the temperature rise will be higher because glass traps heat while copper conducts to heat water

 

[JimmyCarter]

how come chromatography? the crystals are solid :S

 

[thats_me]

What about copper can ? I wrote that the temperature rise will be higher because glass traps heat while copper conducts to heat water

i think ur correct,, i wrote less temp rise the opposite :|

 

[JimmyCarter]

What about copper can ? I wrote that the temperature rise will be higher because glass traps heat while copper conducts to heat water

yea i said that too

 

[tornado]

hey friends i asked a doctor in chemistry he said it is " Testing melting point is correct" while chromatography is WRONG

 

[JimmyCarter]

hey friends i asked a doctor in chemistry he said it is " Testing melting point is correct" while chromatography is WRONG

Thank God <3

 

[Hassani]

now tht u mention it..i think its supposed to be chromatography...though i wrote the melting point!! :/

I believe that since it was a crystal you have should of wrote diffrence in solubility as some crystals require up to 1000 degrees to melt

 

[phantom]

What about copper can ? I wrote that the temperature rise will be higher because glass traps heat while copper conducts to heat water

You mean it will LOSE heat faster, temperature would rise faster if the copper can was being heated, but it wasn't, the reaction produced heat energy, which is then conducted faster to the surrounding by copper