1g of petrol produces 45.8g of energy. Given that the ▲H of combustion of ethanol is -1360kJ/mol, calculate the mass of ethanol required to produce the same amount of energy as 1g of petrol.
I have no idea what to do :$
I did Japanese Continuers through OHS. We have a Jap teacher at our school too though there wasn't enough people for a class.
The prelim year, the work was overwhelming, they only allocated 1 week to complete an entire booklet - there are 21 booklets.
The HSC year, there was much less work and...
Out of curiousity, if i major in both medicinal chemistry and pharamcology at usyd what can I do with the degree?
Will I become a pharmacologist or medicinal chemist or both?
Thanks in advance :D
Agreed!
The short answer questions were really weird. Technology X and technology Y?? Thank god I do chemistry otherwise I would be screwed :P
Chemistry was definitely harder this year compared to last. Just realised that liquid X was concentrated H2SO4 but only wrote down H2SO4. damn! -_-"
I can't find the last proof I need to prove that the triangles are congruent. Judging by the marks it should be quite simple but I can't see it. :(
In trianlge CAB and trianlge GBA:
Angle ACB = angle AGB (angle on the circumference subtended from the same arc AB are equal)
AB = AB (common...