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# Regarding mole questions watch

1. How many moles of H+ ions are there in 0.25dm^3 of 1mol/dm^3 of sulfuric acid
Thankss
2. (Original post by lalala45612)
How many moles of H+ ions are there in 0.25dm^3 of 1mol/dm^3 of sulfuric acid
Thankss
The 'real' answer is complicated and depends on the two dissociation constants of sulphuric acid.

The expected answer is 2 x 0.25 x 1
3. (Original post by charco)
The 'real' answer is complicated and depends on the two dissociation constants of sulphuric acid.

The expected answer is 2 x 0.25 x 1
Umm, what is the 2 x 0.25 x 1 means? like where did they come from
4. (Original post by lalala45612)
Umm, what is the 2 x 0.25 x 1 means? like where did they come from
2 hydrogen ions from 1 molecule of dissociating H2SO4

x

Volume in litres

x

Concentration in moles per litre
5. How do you find the concentration of the undiluted solution of the acid in titrations? If possible, could you explain it in terms of ratios e.g. 11.2cm3 (result of titre) : 0.002654 mol (moles in that amount).

My ISA's tomorrow

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Updated: December 4, 2014
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