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Harga pH 100 mL larutan  0,005 M adalah...

Harga pH 100 mL larutan begin mathsize 14px style Ba open parentheses O H close parentheses subscript 2 end style 0,005 M adalah...

  1. begin mathsize 14px style 2 end style

  2. begin mathsize 14px style 3 minus sign log space 5 end style

  3. begin mathsize 14px style 11 minus sign log space 5 end style

  4. begin mathsize 14px style 11 plus log space 5 end style

Jawaban:

begin mathsize 14px style 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 n cross times M end cell row blank equals cell 2 cross times 5 cross times 10 to the power of negative sign 3 end exponent end cell row blank equals cell 10 to the power of negative sign 2 end exponent space M end cell end table end style


begin mathsize 14px style 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 10 to the power of negative sign 2 end exponent end cell row blank equals 2 row pH equals cell 14 minus sign pOH end cell row blank equals cell 14 minus sign 2 end cell row blank equals 12 end table end style


Tidak tersedia jawaban yang benar di opsi jawaban.

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