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Konsentrasi ion tembaga terkecil tedapat dalam larutan jenuh ...

Konsentrasi ion tembaga terkecil tedapat dalam larutan jenuh ... space 

  1. tembaga (I) iodida begin mathsize 14px style left parenthesis K subscript sp space equals space 1 space x space 10 to the power of negative sign 12 end exponent right parenthesis end style 

  2. tembaga (I) klorida begin mathsize 14px style left parenthesis K subscript sp space equals space 1 space x space 10 to the power of negative sign 7 end exponent right parenthesis end style 

  3. tembaga (I) bromida begin mathsize 14px style left parenthesis K subscript sp space equals space 1 space x space 10 to the power of negative sign 8 end exponent right parenthesis end style 

  4. tembaga (II) karbonat begin mathsize 14px style left parenthesis K subscript sp space equals space 1 space x space 10 to the power of negative sign 10 end exponent right parenthesis end style 

  5. tembaga (II) hidroksida begin mathsize 14px style left parenthesis K subscript sp space equals space 6 space x space 10 to the power of negative sign 20 end exponent right parenthesis end style 

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Jawaban terverifikasi

Jawaban

jawaban yang benar adalah E.

jawaban yang benar adalah E.

Pembahasan

Pembahasan
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Larutan tepat jenuh atau biasa disebut sebagai larutan jenuh tercapai apabila zat terlarut dalam pelarut telah mencapai jumlah maksimumnya pada suhu tertentu. Konsentrasi ion tembaga dalam larutan dapat dilihat berdasarkan nilai kelarutan (s)-nya. Semakin kecil nilai kelarutannyamaka semakin kecil konsentrasi ion tembaga tersebut di dalam larutan. A. Tembaga (I) Iodida B. Tembaga (I) klorida C. Tembaga (I) bromida D. Tembaga (II) karbonat E. Tembaga (II) hidroksida Jadi, jawaban yang benar adalah E.

Larutan tepat jenuh atau biasa disebut sebagai larutan jenuh tercapai apabila zat terlarut dalam pelarut telah mencapai jumlah maksimumnya pada suhu tertentu. Konsentrasi ion tembaga dalam larutan dapat dilihat berdasarkan nilai kelarutan (s)-nya. Semakin kecil nilai kelarutannya maka semakin kecil konsentrasi ion tembaga tersebut di dalam larutan. 

A. Tembaga (I) Iodida begin mathsize 14px style left parenthesis K subscript sp equals 1 space x space 10 to the power of negative sign 12 end exponent right parenthesis end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Cu I open parentheses italic s close parentheses end cell rightwards harpoon over leftwards harpoon cell Cu left parenthesis italic a italic q right parenthesis space plus space I to the power of minus sign left parenthesis italic a italic q right parenthesis end cell row blank blank cell space space space space space space space space space space space space space space space space space space s space space space space space space space space space space space s space end cell end table space space 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 parentheses s close parentheses open parentheses s close parentheses space end cell row cell K subscript sp end cell equals cell s squared end cell row cell 1 cross times 10 to the power of negative sign 12 end exponent end cell equals cell s squared end cell row s equals cell square root of 1 cross times 10 to the power of negative sign 12 end exponent end root end cell row italic s bold equals cell bold space bold 1 bold cross times bold 10 to the power of bold minus sign bold 6 end exponent bold space bold space end cell end table end style 


B. Tembaga (I) klorida begin mathsize 14px style left parenthesis K subscript italic s italic p end subscript equals space 1 space x space 10 to the power of negative sign 7 end exponent right parenthesis end style 

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  begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp end cell equals cell open parentheses s close parentheses open parentheses s close parentheses space end cell row cell K subscript sp end cell equals cell s squared end cell row cell 1 cross times 10 to the power of negative sign 7 end exponent end cell equals cell s squared end cell row s equals cell square root of 1 cross times 10 to the power of negative sign 7 end exponent end root end cell row italic s bold equals cell bold space bold 3 bold comma bold 16 bold cross times bold 10 to the power of bold minus sign bold 4 end exponent bold space bold space end cell end table end style


C. Tembaga (I) bromida begin mathsize 14px style left parenthesis K subscript sp space equals space 1 space x space 10 to the power of negative sign 8 end exponent right parenthesis end style 

begin mathsize 14px style Cu Br open parentheses italic s close parentheses equilibrium Cu to the power of plus sign left parenthesis italic a italic q right parenthesis space plus space Br to the power of minus sign left parenthesis italic a italic q right parenthesis space space space space space space space space space 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 s space space 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 parentheses s close parentheses open parentheses s close parentheses space end cell row cell K subscript sp end cell equals cell s squared end cell row cell 1 cross times 10 to the power of negative sign 8 end exponent end cell equals cell s squared end cell row s equals cell square root of 1 cross times 10 to the power of negative sign 8 end exponent end root end cell row italic s bold equals cell bold space bold 1 bold cross times bold 10 to the power of bold minus sign bold 4 end exponent bold space bold space end cell end table end style


D. Tembaga (II) karbonat begin mathsize 14px style left parenthesis K subscript italic s italic p end subscript equals 1 x 10 to the power of negative sign 10 end exponent right parenthesis end style 

begin mathsize 14px style Cu C O subscript 3 space left parenthesis italic s right parenthesis equilibrium Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space C O subscript 3 to the power of 2 minus sign end exponent left parenthesis italic a italic q right parenthesis space space space space space space space space space space space space 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 space space space space space s space 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 parentheses s close parentheses open parentheses s close parentheses space end cell row cell K subscript sp end cell equals cell s squared end cell row cell 1 cross times 10 to the power of negative sign 10 end exponent end cell equals cell s squared end cell row s equals cell square root of 1 cross times 10 to the power of negative sign 10 end exponent space end root end cell row italic s bold equals cell bold 1 bold cross times bold 10 to the power of bold minus sign bold 5 bold space end exponent end cell end table end style


E. Tembaga (II) hidroksida begin mathsize 14px style left parenthesis K subscript sp space equals space 6 space x space 10 to the power of negative sign 20 end exponent right parenthesis end style

begin mathsize 14px style Cu open parentheses O H close parentheses subscript 2 left parenthesis italic s right parenthesis equilibrium Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 O H to the power of minus sign left parenthesis italic a italic q right parenthesis space space space space space space space space space space space space space space 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 space space space space space 2 s space 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 parentheses s close parentheses left parenthesis 2 s right parenthesis squared space end cell row cell K subscript sp end cell equals cell 4 s cubed end cell row cell 6 cross times 10 to the power of negative sign 20 end exponent end cell equals cell 4 s cubed end cell row cell s cubed end cell equals cell fraction numerator 6 cross times 10 to the power of negative sign 20 end exponent over denominator 4 end fraction end cell row s equals cell cube root of 15 cross times 10 to the power of negative sign 21 end exponent end root end cell row italic s bold equals cell bold space bold 2 bold comma bold 47 bold cross times bold 10 to the power of bold minus sign bold 7 end exponent bold space end cell end table end style

 

Jadi, jawaban yang benar adalah E.

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