Hypography Science Forums: cockydude - Viewing Profile - Hypography Science Forums

now i really need help. This particular maths assignment i have (IB math portfolio) requires me to find conjectures from number patters. i figured out most of em except this particular one which goes like
1^k + 2^k + 3^k 4^k +...... + n^k
can anyone help me with coming up a conjecture with the above sequence?
THANKS (:
help would really be wonderful

Well im in my IB 1 year and supposedly (according to some teachers) that i signed a death warrant by deciding to do an extended essay on chemistry.
Anyway, my topic is the Extraction of Salicylic Acid from different rhizomes
Basically, i plan to extract and purify salicylic from different rhizomes plants (eg.turmeric) and see which rhizomes would yield the highest amount of salicylic acid. well i do realise that it can be difficult to extract an organic compound from a natural source.
THe problem is i couldn't find any protocols for extraction in accessible journals. So far, i found out that recrystallisation migh be possible.
Does anyone have any advice regarding this extraction? Any help would be much appreciated!

This is a follow up question following a chemistry practical i did earlier.
M (which is identified as Sodium) formas a compound MHCO3 which decomposes on heating according to the following equation

2MHCO3---> M2CO3 + CO2 +H2O

given a sample and the usual apparatus found in a school lab. Suggest an experiment which could be used to find the Mr of M.
include (a) diagrams ( measurements taken © how results could be used to obtain Mr of M

Help is much appreciated

What if in like a 100 years time there is drastic changes in our genes (due to mutagens like radiation from almost everywhere, cellphones, coms ect ect.) and people are mutated so drastically that some of us actually turn into these mutants as show in X-men.
I don't know if its plausible but i think its slightly possible.
so what will happen both socially and scientifically to these "superhumans" in real life.
any thoughts?

Well i have got the next 2 years to do a realistic science project and write a 3000 word essay on it, but i have no idea what i want to do, preferably something bio-based, narrow in scope, not too heavy and not to deep. Anyone care to suggest any patricular topics they have done?