- Joined
- Dec 14, 2011
- Messages
- 496
- Reaction score
- 1
ah so i did the sciences of the ADA 07 yesterday and i was kinda of surprised bc the way people talk about it on here...maybe i expected it to be a SUPER breeze idk :-/ ...it WAS easier than others BUT some of the bio questions and chem questions were a little weird, with the wording and types of calculations so they took longer than anticipated...the orgo was def really easy though but i still got two wrong :/
bio 35/40
#12 - all biosynthetic reactions in living cells lead to a MORE ordered state and DECREASE in entropy? why did i think it was INCREASE in entropy ..bc we use and release energy?
#36 - the rate and type of cleavage occuring after fertilization would be most affected by the amount and distribution of yolk? i had no idea this and never heard of it...did i miss something somewhere?
GC 27/30
#51 - During a titration it was determined that 30mL of a 0.1M Ce4+ solution was required to react completely with 20.0mL of a 0.150M Fe2+ solution. Which one of the following reactions occurred?
WTH - i have no idea what to even do with this, especially with the answer choices given...i read someone elses response to this question but still nothing
#60- stupid mistake by overthinking it...i ended up setting up the chart, doubling the concentration of B and seeing how that effected rate and put that itd be 1/4 of the original ...
i was indeed wrong in doing this right?
ie i had concentration of B in the chart as ...1 and 2...so rate would be 4 (2^x = 4) according to the original, which would make x = 2....so then in the chart i doubled B to 4, so 4^x = 4 which would make x = 1
OC 28/30
#73 - Ethane reacts with chlorine in the presence of heat or UV light to give chloroethane. CH3CH3 + Cl2 -->heat or UV--> CH3CH2Cl + HCl
why is the intermediate with a radical instead of carbocation?
bio 35/40
#12 - all biosynthetic reactions in living cells lead to a MORE ordered state and DECREASE in entropy? why did i think it was INCREASE in entropy ..bc we use and release energy?
#36 - the rate and type of cleavage occuring after fertilization would be most affected by the amount and distribution of yolk? i had no idea this and never heard of it...did i miss something somewhere?
GC 27/30
#51 - During a titration it was determined that 30mL of a 0.1M Ce4+ solution was required to react completely with 20.0mL of a 0.150M Fe2+ solution. Which one of the following reactions occurred?
WTH - i have no idea what to even do with this, especially with the answer choices given...i read someone elses response to this question but still nothing
#60- stupid mistake by overthinking it...i ended up setting up the chart, doubling the concentration of B and seeing how that effected rate and put that itd be 1/4 of the original ...
i was indeed wrong in doing this right?
ie i had concentration of B in the chart as ...1 and 2...so rate would be 4 (2^x = 4) according to the original, which would make x = 2....so then in the chart i doubled B to 4, so 4^x = 4 which would make x = 1
OC 28/30
#73 - Ethane reacts with chlorine in the presence of heat or UV light to give chloroethane. CH3CH3 + Cl2 -->heat or UV--> CH3CH2Cl + HCl
why is the intermediate with a radical instead of carbocation?