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Pertanyaan

Ksp larutan garam begin mathsize 14px style L open parentheses O H close parentheses subscript 2 equals 1 comma 08 cross times 10 to the power of negative sign 10 end exponent end style . pH larutan jenuh adalah …

  1. 4 - log3

  2. 4 + log6

  3. 10 + log6

  4. 3 - log4

  5. 6 + log4

N. Puji

Master Teacher

Mahasiswa/Alumni Universitas Sebelas Maret

Jawaban terverifikasi

Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K s p space L open parentheses O H subscript 2 close parentheses end cell equals cell 4 s cubed space end cell row cell 1 comma 08 cross times 10 to the power of negative 10 end exponent end cell equals cell 4 s cubed space end cell row blank blank cell s equals cubed square root of 108 over 4 cross times 10 to the power of negative 12 space end exponent end root end cell row blank equals cell 3 cross times 10 to the power of negative 4 end exponent end cell end table end style
 

Mencari pH:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell O H to the power of minus end cell equals cell 2 s space end cell row blank equals cell 2 open parentheses 3 cross times 10 to the power of negative 4 space end exponent close parentheses end cell row blank equals cell 6 cross times 10 to the power of negative 4 end exponent space end cell row cell p O H end cell equals cell 4 minus log 6 space end cell row cell p H end cell equals cell 14 minus open parentheses 4 minus log 6 close parentheses space end cell row blank equals cell 10 plus log 6 space end cell end table end style

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