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Pada suhu tertentu, kelarutan  dalam air adalah  m...

Pada suhu tertentu, kelarutan begin mathsize 14px style Pb I subscript 2 end style dalam air adalah begin mathsize 14px style 1 comma 5 cross times 10 to the power of negative sign 3 end exponent end style mol/liter. Berdasarkan data tersebut, maka harga begin mathsize 14px style K subscript sp space Pb I subscript 2 end style adalah undefined 

  1. begin mathsize 14px style 4 comma 50 cross times 10 to the power of negative sign 9 end exponent end style 

  2. begin mathsize 14px style 3 comma 37 cross times 10 to the power of negative sign 9 end exponent end style 

  3. begin mathsize 14px style 6 comma 75 cross times 10 to the power of negative sign 8 end exponent end style 

  4. begin mathsize 14px style 4 comma 50 cross times 10 to the power of negative sign 8 end exponent end style 

  5. begin mathsize 14px style 1 comma 35 cross times 10 to the power of negative sign 8 end exponent end style 

Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Pb I subscript 2 italic open parentheses italic s italic close parentheses end cell rightwards harpoon over leftwards harpoon cell Pb to the power of 2 plus sign italic left parenthesis italic a italic q italic right parenthesis plus 2 I to the power of minus sign italic left parenthesis italic a italic q italic right parenthesis end cell row blank blank cell space space space s space space space space space space space space space space space space s space space space space space space space space space space space space space space space space 2 s end cell row cell K subscript sp end cell equals cell open square brackets Pb to the power of 2 plus sign close square brackets space space open square brackets I to the power of minus sign close square brackets squared space end cell row blank equals cell s space middle dot left parenthesis 2 s right parenthesis squared space end cell row blank equals cell 4 s cubed end cell row blank equals cell 4 left parenthesis 1 comma 5 cross times 10 to the power of negative sign 3 end exponent right parenthesis cubed space equals 1 comma 35 cross times 10 to the power of negative sign 8 end exponent end cell end table end style 

Jadi, jawaban yang benar adalah (E).

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