Qualification > Sciences
Chemistry Help HERE ONLY !!
unknown 101:
--- Quote from: emi on May 29, 2009, 02:49:45 pm ---ahhaa ,, so because they want more i only have to see how much moles they have right ?
we can see that H2SO4 is one mole and its mole is 0.08
so if NiCO3 is also one more then it will also be 0.08
right ?
tell me if i pass this part
--- End quote ---
yeah u passed this part and shogun 2 mol/dm3 is the conc of the H2SO4
Shogun:
yup, srry its the concentration od sulphuric acid,lol
lil wayne hos do i do get the maximum moles of hydrated salt....
Shogun:
cuz i could do 10.4/281, and i got 0.03 but whn i went and check the mark scheme it says 0.08, i cant seem to ge tht answer. i mean i now how to do the next ones but it would only dpend on this particular answer... ???
unknown 101:
--- Quote from: Shogun on May 29, 2009, 02:58:52 pm ---yup, srry its the concentration od sulphuric acid,lol
lil wayne hos do i do get the maximum moles of hydrated salt....
--- End quote ---
its 0.08 cuz (1:1) ratio
unknown 101:
--- Quote from: LilWayne on May 29, 2009, 03:06:40 pm ---
--- Quote from: Shogun on May 29, 2009, 02:58:52 pm ---yup, srry its the concentration od sulphuric acid,lol
lil wayne hos do i do get the maximum moles of hydrated salt....
--- End quote ---
its 0.08 cuz (1:1) ratio
--- End quote ---
the nickel sulphate from the past part was 0.08 mol so the hydrated salt would also be 0.08
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