jika ba oh 2 dianggap terionisasi sempurna

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Daftar Isi

Pembahasan

Larutan Ba open parentheses O H close parentheses subscript 2 ialah larutan basa besar lengan berkuasa, maka akan terionisasi tepat. Persamaan reaksi ionisasi Ba open parentheses O H close parentheses subscript 2 yaitu

Ba open parentheses O H close parentheses subscript 2 left parenthesis italic a italic q right parenthesis yields Ba to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus 2 O H to the power of minus sign left parenthesis italic a italic q right parenthesis

Konsentrasi ion O H to the power of minus sign dalam basa tersebut mampu dijumlah dgn cara :

open square brackets O H to the power of minus sign close square brackets equals italic b cross times M space Ba open parentheses O H close parentheses subscript 2

dengan b yakni jumlah ion O H to the power of minus sign yang dihasilkan dlm ionisasi basa & M adalah konsentrasi basa.

table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets O H to the power of minus sign close square brackets end cell equals cell italic b cross times M space Ba open parentheses O H close parentheses subscript 2 end cell row blank equals cell 2 cross times 0 comma 2 end cell row blank equals cell 0 comma 4 space M end cell end table

Nilai pH larutan Ba open parentheses O H close parentheses subscript 2 yaitu :

table attributes columnalign right center left columnspacing 0px end attributes row pOH equals cell negative sign log space open square brackets O H to the power of minus sign close square brackets end cell row blank equals cell negative sign log space 4 cross times 10 to the power of negative sign 1 end exponent end cell row blank equals cell 1 minus sign log space 4 end cell row blank equals cell 1 minus sign 0 comma 6 end cell row blank equals cell 0 comma 4 end cell row pH equals cell 14 minus sign pOH end cell row blank equals cell 14 minus sign 0 comma 4 end cell row blank equals cell 13 comma 6 end cell end table

pH larutan yg terbentuk yaitu 13,6.

Jadi, balasan yg tepat yaitu B.

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