brewer7410 brewer7410

19-03-2018
Chemistry

contestada

An aqueous solution has an h3o+ concentration of 4.4×10-2 m. calculate [oh–] for this solution.

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kenmyna kenmyna

28-03-2018

first calculate Ph
Ph= -log (H3O+)
Ph=-log( 4.4 x10^-2)= 1.4

Ph +Poh=14
Poh is therefore= 14 - 1.4=12.6

Oh- concentration is calculated as follows
1 x10^ -POh
that is 1 x10^-12.6 which is= 2.5 x10^-13

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