its acid where is the other O??
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its acid where is the other O??
CHO?? yeah min too .I got CHO as the empirical formula and suspect that it is wrong!
What was the empirical formula?
In Q5 what functional group was present in G?
And what was the enthalpy change?Mine was -129 kJ/mol.
Yes increasing the temp would lower the equilibrium yeild as the forward reaction was exothermicShit guys! for the enthalpy question i got -129
And for the second part where we had to explain the factors temp, pressure and catalyst, I wrote everything according to the main equation, which was combustion of methanol!
Like for example in temperature, I wrote : Since the equation is exothermic, increasing the temperature will lower the yield cuz it will shift backwards and decreasing the temperature will increse the yield cuz it will shift forward.
Am I correct?
Dat reaction ws not an equilibrium oneYes increasing the temp would lower the equilibrium yeild as the forward reaction was exothermic
Wheres the OH?
ture thatEnthalpy Change was= -129 KJ/mol
The structure for question 5 was = OHCH2COCH2OH, By just getting this right, obviously the whole question will be alright.
First question= Colored flame produced was with Na, P and S
The smaller angle was of sulfurs
evn i thought tat too..bt realized it ltr!!!it will be lower than usual ... arghh i thought the question with enthalpy was equilibrium conditions ...so wrote the effect of preesure and temperature on equilibrium conditions...
u actualy rmbr wt u wrote!!P22
stuffs i remember!
q1: phosphorus has coloured flame!
observations wer white solid formed and color of chlorine disappears.
all the three were acidic(pH na: 3, and others i dont remember) and i did all of them react(which i know is wrong )
reaction with water, neutralisation?
angle a was smaller bcause it had 2 lone pairs
q2: enthalpy i think i did a silly mistake and i THINK i got -127
reaction kinetics for all the three!
q3: 2 esters were formed
one alkene
one alcohol
and one carboxylic acid
dehydration, oxidation, hydrolysis/hydration
chiral one was easy
cis trans skeletal was easy
q4: 2 ticks for alcohol for oxidising agent (i dnt rem what was it) and Na
1 tick for Nahco3 and ester
1 tick for Carboxylic acid and Na
1 tick for aldehyde and oxidising agent
functional grp was alcohol
no. of moles of hydrogen= 0.05 (LOL i m pretty sure im wrong, i just didnt want to leave the space empty so did some shit and got 0.05)
then it was ketone which doesnt react with fehlings but with 24 DNPH
and there were 2 alcohols and one ketone, so i got C3H6O3
and the last with oxiding agent the primary alc turn into carboxylic acids
the ketone tunrs into sec alcohol with the reducing agent
THATS IT i cant rem 2 or 3 parts in there!
point me out if im wrong or if i left something!
God Bless You All!
i wrte phsohrus..bt cut it n wrte Na...whch is right??most of ppl here wrote sodium ??
u actualy rmbr wt u wrote!!
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