# alevel chem question

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#1
if barium hydroxide solution contains 3.89g of ba(oh)2 in 100cm^3 and 20degrees

calculate the conc of hydroxide ions (oh) of this solution at 20 degrees

I got my answer as 0.277 but im not sure if thats correct????????
0
1 month ago
#2
I would say 0.454, because for every mole of Ba(OH)2 there's two moles of OH- ions. I'm also assuming you meant 0.227, not 0.277?
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#3
(Original post by user342)
I would say 0.454, because for every mole of Ba(OH)2 there's two moles of OH- ions. I'm also assuming you meant 0.227, not 0.277?
ahh ok thank you
0
1 month ago
#4
what equation did u use to figure out the answer
also what exam board is this question from
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