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hey im having a bit of trouble with this question.. Calculate the concentration of [OH] in a 0.45M solution of NH3 (Kb = 1.8 times 10 to the power of negative five(logs)) Thanks heaps:D

WOW im the exact same! biology is the best!! i was really angry when we did biotech and i agree its really really boring. easy, but boring. i wish for communication. :wave:

hey i am on the road to becoming a fashion photographer (well hopefully) and i was wondering if anyone knew how this could be achieved. or if anyone would like my help with the photography of their work?? please get back 2 me. i need fashion designers and models. thanks ;)

hey i have a fantastically anoying assignment due quite soon. and was wondering if a episode of media watch, the story is of a story published in the sun herald. would this be good as a related text to frontline. and how could they be linked?? i seem to be having troble. :confused: please...