in order to get good acid, do the batteries need to be charged? or can they be old discarded dead ones from the back of pep boys?

i think they still need to be charged, (based on how batteries use their power sources to provide electrical energy) however i could be wrong...

charge them as best you can 1`st, and THEN take the acid, allow a cooling period (3 to 4 hours) also )

how many moles of sulphuric acid are the in a car battery eg.0.5m, 1m, 2m etc

CBA to calc that atm, but your looking at a good 30%+ conc

what do you intend to do with the H2SO4?

i was wondering if it would be the right concentration to make iodine

well even if it wasn`t, it`s only a 10 second job to MAKE IT the right concentration

i need 1m so yes it would only be a 10 second job but concentrating it would take longer

the acid in car batteries is like 40% so youd actually dilute it to get down to 1M

how many moles of sulphuric acid are the in a car battery eg.0.5m, 1m, 2m etc

and you must also respect that this question alone is only half complete and therefore somewhat missleading.

 

how many moles in a car batt, well, specifiy the Volume of acid for a start

 

car batts come in MANY different sizes, an so I may have 2 moles in 1 batt and 1 mole in another, both acids at same conc, just different Volumes

 

I didn`t pick up on this as I wanted to see if someone else would, not to worry tho`

 

edited: for typos (too much celebration here )

i was planning to use battery acid to extract iodine from seaweed

amazing how all of these threads link together.

"amazing how all of these threads link together."

 

It's a conspiracy! Run for the hills and load your muskets!

i was planning to use battery acid to extract iodine from seaweed

try asking a mechanic for sulfuric

my grandpa is going to get me some from his old works, so getting sulphuric acid is no problem

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1 gram of Hydrogen is one mole.

 

and so why would 1 mole of Sulphuric Acid be less than that???

 

a "Mole" is a quantity taken from the Hydrogen base (Avogadro) or do you mean Molar?

 

edited: for typos, forgot how to spell "Avogadro" DOH!

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98 what? Grams, beans, lightbulbs????

 

that was the point in my post, I had no intention of being deliberately "difficult", you really do need to define your terms a little better

 

for example: "so would 1 mole of sulphuric acid have a density of 0.098g/ml"

 

well it depends how much soln your "mole" of H2SO4 is in? the density alters with conc

and so I throw a mole of Sulphuric into the ocean and expect the density to change?

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you still can`t ignore concentration

 

a mole of ANY substance is relative to it`s concentration when talking about "density" although I prefer to use Concentraion percentages.

 

as I said you can dump a mole of Sulphuric in the Ocean, it`ll not make an apreciable difference in its overall weight or density

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actually i'd think it would be 5.555555555555555555555%

100% sulfuric is 18M, no?