Gold Q: Because it's 2 moles of gold for every 2 moles of HCl, do you just work out the moles of gold and carry the number across to use on the HCl - you don't have to divide it to find one mole? None of my figures are being accepted
You're using the wrong ratios.
Search aqua regia and refinement of gold. The equations should help you get the right ratios.
Also, the number printed on the gold is of high importance. Just sayin'.
Gold Q: Because it's 2 moles of gold for every 2 moles of HCl, do you just work out the moles of gold and carry the number across to use on the HCl - you don't have to divide it to find one mole? None of my figures are being accepted
The periodic table? I'm sat looking at it, but nothing is coming to mind... I just can't think of any properties which would involve negative numbers, other than charge, which it clearly is not, and melting/boiling points in centigrade.
yup the periodic table and boiling points. that should be enough if you think about it.
Christ I cant believe I missed that for so long! I knew the 100 was intended to be the hint, and suspected it being a boiling point all along, but couldnt figure out the rest.
well right order of magnitude. quite a way off though. how have you worked it out?
(250000/1000)*999 for the actual amount of gold Moles of gold by mass/mr Moles of Hcl by multiplying the gold moles by 6 Then I got stuck, because I think you have to use molarity and I'm not sure what it is.... If the molarity of HCl is 12, I just divided my answer by 12 and then multiplied by 1000 for mL, but clearly that isn't right! This question is annoying me so much!
I'm absolutely baffled on the roentgenium level question!
I've also got the 'but what is x, what is y, what is z?' but apart from that, even with the hints people have given, I don't have a clue!
I can see the link for getting the numbers at the bottom (if that has any significance), but as for the periodic table and boiling points, I'm not sure. Could someone please give a little more help? Please
EDIT: forget that! Solved it literally 5 minutes after posting this!