Pertanyaan

Garam yang memiliki kelarutan paling kecil yaitu pada nomor....

Garam yang memiliki kelarutan paling kecil yaitu pada nomor.... $\;$

F. Handiani

Master Teacher

Mahasiswa/Alumni Universitas Negeri Yogyakarta

Jawaban terverifikasi

Pembahasan

Kelarutan/ solubility (s) merupakan jumlah maksimum zat yang dapat larut dalam sejumlah pelarut. Kelarutan dinyatakan dalam mol/L atau gram/L. Kelarutan suatu garam dapat ditentukan dari nilai hasil kelarutan ion-ionnya. Kelarutan garam-garam tersebut sebagai berikut. Maka, garam yang memiliki kelarutan paling kecil yaitu pada nomor 5 (AgCl).

Kelarutan/ solubility (s) merupakan jumlah maksimum zat yang dapat larut dalam sejumlah pelarut. Kelarutan dinyatakan dalam mol/L atau gram/L. Kelarutan suatu garam dapat ditentukan dari nilai hasil kelarutan ion-ionnya. Kelarutan garam-garam tersebut sebagai berikut.

$table attributes columnalign right center left columnspacing 0px end attributes row cell Ni C O subscript 3 end cell rightwards harpoon over leftwards harpoon cell Ni to the power of 2 plus sign and C O subscript 3 to the power of 2 minus sign end cell row blank blank cell space space space space s space space space space space space space space space s space space space space space space space space space space space s end cell row cell K subscript sp end cell equals cell open square brackets Ni to the power of 2 plus sign close square brackets open square brackets C O subscript 3 to the power of 2 minus sign close square brackets end cell row blank equals cell s cross times s end cell row blank equals cell s squared end cell row s equals cell square root of K subscript sp end root end cell row blank equals cell square root of 6 cross times 10 to the power of negative sign 9 end exponent end root end cell row blank equals cell 2 comma 4 cross times 10 to the power of negative sign 4 comma 5 end exponent end cell row blank blank blank row cell Cr F subscript 3 end cell rightwards harpoon over leftwards harpoon cell Cr to the power of 3 plus sign and 3 F to the power of minus sign end cell row blank blank cell space space s space space space space space space space space space s space space space space space space space space 3 s end cell row cell K subscript sp end cell equals cell open square brackets Cr to the power of 3 plus sign close square brackets open square brackets F to the power of minus sign close square brackets cubed equals s cross times left parenthesis 3 s right parenthesis cubed equals 27 s to the power of 4 end cell row s equals cell fourth root of K subscript sp over 27 end root end cell row blank equals cell fourth root of fraction numerator 6 comma 6 cross times 10 to the power of negative sign 11 end exponent over denominator 27 end fraction end root end cell row blank equals cell 1 comma 6 cross times 10 to the power of negative sign 3 end exponent end cell row blank blank blank row cell Ca F subscript 2 end cell rightwards harpoon over leftwards harpoon cell Ca to the power of 2 plus sign and 2 F to the power of minus sign end cell row blank blank cell space space s space space space space space space space space space space s 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 Ca to the power of 2 plus sign close square brackets open square brackets F to the power of minus sign close square brackets squared equals s cross times left parenthesis 2 s right parenthesis squared equals 4 s cubed end cell row s equals cell cube root of K subscript sp over 4 end root end cell row blank equals cell cube root of fraction numerator 3 comma 9 cross times 10 to the power of negative sign 11 end exponent over denominator 4 end fraction end root end cell row blank equals cell 3 comma 1 cross times 10 to the power of negative sign 4 end exponent end cell row blank blank blank row cell Ag subscript 2 Cr O subscript 4 end cell rightwards harpoon over leftwards harpoon cell 2 Ag to the power of plus sign and Cr O subscript 4 to the power of 2 minus sign end cell row blank blank cell space space space space space space space s space space space space space space space space space space 2 s space space space space space space space space space space space s end cell row cell K subscript sp end cell equals cell open square brackets Ag to the power of plus sign close square brackets squared open square brackets Cr O subscript 4 end subscript to the power of 2 minus sign close square brackets end cell row blank equals cell left parenthesis 2 s right parenthesis squared cross times s equals 4 s cubed end cell row s equals cell cube root of K subscript sp over 4 end root end cell row blank equals cell cube root of fraction numerator 1 comma 1 cross times 10 to the power of negative sign 12 end exponent over denominator 4 end fraction end root end cell row blank equals cell 5 comma 2 cross times 10 to the power of negative sign 5 end exponent end cell row blank blank blank row cell Ag Cl end cell rightwards harpoon over leftwards harpoon cell Ag to the power of plus sign and Cl to the power of minus sign end cell row blank blank cell space space space s space space space space space space space space s space space space space space space space space s end cell row cell K subscript sp 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 blank equals cell s cross times s end cell row blank equals cell s squared end cell row s equals cell square root of K subscript sp end root end cell row blank equals cell square root of 1 comma 8 cross times 10 to the power of negative sign 10 end exponent end root end cell row blank equals cell 1 comma 3 cross times 10 to the power of negative sign 5 end exponent end cell end table$

Maka, garam yang memiliki kelarutan paling kecil yaitu pada nomor 5 (AgCl).

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