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Diketahui kelarutan . Tentukan kelarutan   dalam: Larutan  0,05 M

Pertanyaan

Diketahui kelarutan begin mathsize 14px style Ag Cl equals 10 to the power of negative sign 4 end exponent space M end style. Tentukan kelarutan undefined  dalam:

Larutan begin mathsize 14px style Na Cl end style 0,05 Mbegin mathsize 14px style space end style 

Pembahasan Soal:

begin mathsize 14px style stack Na Cl with 0 comma 05 space M below yields Na to the power of plus sign plus stack Cl to the power of minus sign with 0 comma 05 space M below end style 

undefined 

Nilai s jauh lebih kecil dibandingkan 0,05 M.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell K subscript sp space Ag Cl end cell equals cell open square brackets Ag to the power of plus sign close square brackets open square brackets Cl to the power of minus sign close square brackets end cell row cell 10 to the power of negative sign 4 end exponent end cell equals cell open parentheses s close parentheses left parenthesis s plus 0 comma 05 right parenthesis end cell row cell 10 to the power of negative sign 4 end exponent end cell equals cell open parentheses s close parentheses left parenthesis 0 comma 05 right parenthesis end cell row s equals cell fraction numerator 10 to the power of negative sign 4 end exponent over denominator 0 comma 05 end fraction end cell row s equals cell 2 cross times 10 to the power of negative sign 3 end exponent space M end cell end table end style 


Jadi, kelarutan undefined dalam larutan begin mathsize 14px style bottom enclose Na Cl bold space bold 0 bold comma bold 05 bold space italic M end enclose end style sebesar begin mathsize 14px style bottom enclose bold 2 bold cross times bold 10 to the power of bold minus sign bold 3 end exponent bold space italic M end enclose end style.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 15 Maret 2021

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