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Physics: Post your doubts here!
Yeah thanks.. I got that too btw how did we have to sketch that graph in paper about Hall voltage? -
Physics: Post your doubts here!
Someone pleeassse explain these sketches. MS says smooth curves and I'm not getting how! -
How was Biology Paper 42 MAY/JUNE 2017?
yes I think I got the same index of diversity. But I think I wrote the answers to 3 significant figures instead of 3 decimal places. :/ In microarray, I wrote there are probes on the chip that have complementary bases to those that are on the DNA ( which are at risk) so complementary base paring... -
How was Biology Paper 42 MAY/JUNE 2017?
it was link reaction, just two things happen during link reaction, as far as I remembered. The pyruvate is decarboxylated and dehydrogenated. Dehydrogenation was already shown so it had to be decarboxylated before entering Krebs cycle, that means CO2 out. -
How did Chemistry M/J '17 52 go?
gosh! this paper went bad for me or so I believe gotta work hard in paper 4 did the answer support that law thing? question 1 was heck -
How was Biology Paper 42 MAY/JUNE 2017?
that's pretty sad.. what do you think you messed up? -
How was Biology Paper 42 MAY/JUNE 2017?
same here : D what about allele A having no effect? -
How was Biology Paper 42 MAY/JUNE 2017?
I think it was quite okay...I didn't find it lengthy either, paper 4 is always like that. But sure enough, questions weren't straight-forward like they used to be in previous years. But a little reasoning, then could be answered well. Gt will hopefully be low because there's a lot of chance... -
Chemistry: Post your doubts here!
Though 2 years aren't much but I did like from 2010, and the lastest ones are more important, so you'd do fine. Did you do all variants? Also any idea, how do we keep reactants separate until the reaction starts? like maybe tie a thread to crucible and put the bung. then use thread to empty... -
A complete guide to getting your Equivalence certificate
If you are writing Edexcel exams, there are alternate to practicals there instead of practicals but I've no idea about their assessment because I'm doing Cambridge, so don't know whether you can pass them without doing actual practical work. I'm taking private Cambridge exams and I do have...- techgeek
- Post #57
- Forum: General University Discussion
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How did Physics P2 go?
I think two identical waves 180 degrees out of phase will completely cancel each other out and destructive interference occurs, no? that's what I wrote. Plus the first one, with zero phase difference was the zero order maximab?. Correct me if I'm wrong. -
How did Physics M/J '17 52 go?
my y-intercept was big, around 7 and uncertainty was even bigger :/ -
How did Physics M/J '17 52 go?
I wrote r as independent variable and f as dependent plotting a graph r against 1/f straight line passing through origin Keep mass of cube constant I drew the turntable and a top pan balance . since the turntable was connected to electric motor I thought it'd be too fast to count manually so I... -
Chemistry: Post your doubts here!
water formed is in liquid state too.. so total volume of products remain the same -
Chemistry: Post your doubts here!
why not 20? Looking at it practically, adding 10 cm^3 of acid to 10 cm^3 of alkali would result in a total volume of 20.. no? The amount of acid though changed because some of the moles reacted with alkali to give a salt, but it has whatsoever nothing to do with volume, the concentration changes... -
Chemistry: Post your doubts here!
NaOH + CH3CO2H ----------- CH3CO2Na + H2O moles of NaOH= C*V = 10/1000 * 0.100 = 0.001 moles of acid= C*V = 10/1000 * 0.250 = 0.0025 Hence acid is excess. Both will react with 1 ratio 1 so acid remaining would be 0.0025-0.001= 0.0015 moles. The moles of salt would be 0.001 as moles of CH3CO2Na... -