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Di antara garam karbonat berikut yang paling mudah larut dalam air adalah ....

Pertanyaan

Di antara garam karbonat berikut yang paling mudah larut dalam air adalah .... undefined

  1. begin mathsize 14px style Ni C O subscript 3 space open parentheses K subscript sp equals 6 comma 6 cross times 10 to the power of negative sign 9 end exponent close parentheses end style

  2. begin mathsize 14px style Ag subscript 2 C O subscript 3 space open parentheses K subscript sp equals 8 comma 1 cross times 10 to the power of negative sign 12 end exponent close parentheses end style

  3. begin mathsize 14px style Ba C O subscript 3 space open parentheses K subscript sp equals 5 comma 1 cross times 10 to the power of negative sign 9 end exponent close parentheses end style

  4. begin mathsize 14px style Pb C O subscript 3 space open parentheses K subscript sp equals 7 comma 4 cross times 10 to the power of negative sign 14 end exponent close parentheses end style

  5. begin mathsize 14px style Hg subscript 2 C O subscript 3 space open parentheses K subscript sp equals 3 comma 6 cross times 10 to the power of negative sign 17 end exponent close parentheses end style

Y. Rochmawatie

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah B.

Pembahasan

Garam karbonat yang paling mudah larut dalam air adalah garam karbonat yang memiliki nilai s (kelarutan) paling besar. Semakin besar nilai s, maka akan semakin tinggi kelarutannya.

  1. begin mathsize 14px style Ni C O subscript 3 space open parentheses K subscript sp equals 6 comma 6 cross times 10 to the power of negative sign 9 end exponent close parentheses end style

    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open square brackets Ni to the power of 2 plus sign close square brackets left square bracket C O subscript 3 to the power of 2 minus sign end exponent right square bracket end cell row cell 6 comma 6 cross times 10 to the power of negative sign 9 end exponent end cell equals cell s squared end cell row s equals cell 2 comma 57 cross times 10 to the power of negative sign 4 comma 5 end exponent end cell end table end style
     
  2. begin mathsize 14px style Ag subscript 2 C O subscript 3 space open parentheses K subscript sp equals 8 comma 1 cross times 10 to the power of negative sign 12 end exponent close parentheses end style

    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open square brackets Ag to the power of plus sign close square brackets squared left square bracket C O subscript 3 end subscript to the power of 2 minus sign end exponent right square bracket end cell row cell 8 comma 1 cross times 10 to the power of negative sign 12 end exponent end cell equals cell left parenthesis 2 s right parenthesis squared open parentheses s close parentheses end cell row s equals cell 1 comma 26 cross times 10 to the power of negative sign 4 end exponent end cell end table end style
     
  3. begin mathsize 14px style Ba C O subscript 3 space open parentheses K subscript sp equals 5 comma 1 cross times 10 to the power of negative sign 9 end exponent close parentheses end style

    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open square brackets Ba to the power of 2 plus sign close square brackets left square bracket C O subscript 3 to the power of 2 minus sign end exponent right square bracket end cell row cell 5 comma 1 cross times 10 to the power of negative sign 9 end exponent end cell equals cell s squared end cell row s equals cell 2 comma 26 cross times 10 to the power of negative sign 4 comma 5 end exponent end cell end table end style
     
  4. begin mathsize 14px style Pb C O subscript 3 space open parentheses K subscript sp equals 7 comma 4 cross times 10 to the power of negative sign 14 end exponent close parentheses end style

    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open square brackets Pb to the power of 2 plus sign close square brackets left square bracket C O subscript 3 to the power of 2 minus sign end exponent right square bracket end cell row cell 7 comma 4 cross times 10 to the power of negative sign 14 end exponent end cell equals cell s squared end cell row s equals cell 2 comma 72 cross times 10 to the power of negative sign 7 end exponent end cell end table end style
     
  5. begin mathsize 14px style Hg subscript 2 C O subscript 3 space open parentheses K subscript sp equals 3 comma 6 cross times 10 to the power of negative sign 17 end exponent close parentheses end style

    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open square brackets Hg to the power of plus sign close square brackets squared left square bracket C O subscript 3 to the power of 2 minus sign end exponent right square bracket end cell row cell 3 comma 6 cross times 10 to the power of negative sign 17 end exponent end cell equals cell left parenthesis 2 s right parenthesis squared open parentheses s close parentheses end cell row s equals cell 2 comma 08 cross times 10 to the power of negative sign 6 end exponent end cell end table end style

Berdasarkan perhitungan di atas, senyawa yang memiliki kelarutan paling besar adalah begin mathsize 14px style Ag subscript 2 C O subscript 3 end style.

Jadi, jawaban yang benar adalah B.

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