Yeah, it was worth 3 marks, don't worry, i screwed up alot of 3 markers.
Join the club. I feel the same way.
I think thats what most people got. I don't think I even got anywhere near that.
I was talking about the question which asked why the value was less than the theoretical value, not what the value of the molar heat of combustion of 1-propanol.
I said that when some atoms absorb energy and emit light, the light isn't always visible, (that is why AAS is used), thus it would be inappropriate to use a flame test.
I remember reading it in a book somewhere.
I said he was an analytical chemist working at Qenos, then i explained that he used the principle of gas chromatography, then I explained what that was. Is that right?
Same. What radioisotopes did you use? I used Cobalt - 60 and Iodine - 131.
Cobalt - 60 used to sterilize medical equipment (industry)
Iodine - 131 used to treat thyroid cancer in the thyroid gland. (medicine)