Jawaban :

massa nikel yang diendapkan adalah 0,59 gram.

Penjelasan :

Hukum faraday 2 mengatakan bahwa massa zat yang dibebaskan pada elektrolisis (G) berbanding lurus dengan massa ekivalen zat itu (ME)

begin mathsize 14px style Ag N O subscript 3 yields Ag to the power of plus sign and N O subscript 3 to the power of minus sign Ag to the power of plus sign and e yields Ag open parentheses s close parentheses massa space Ag space equals space 1 comma 08 space gram space space space space space space space Ar space Ag space equals space 108 space gram forward slash mol space space space space space space space space space space ME equals Ar over e space space space space space space space space space space ME equals 108 over 1 space space space space space space space space space space ME equals 108 space space space space space Ni S O subscript 4 yields Ni to the power of 2 plus sign and S O subscript 4 to the power of 2 minus sign end exponent Ni to the power of 2 plus sign and 2 e yields Ni open parentheses s close parentheses Ar space Ni space equals space 59 space space space space space space e space equals space 2 ME space Ni space equals Ar over e ME space Ni space equals 59 over 2 ME space Ni space equals 29 comma 5 end style \

Untuk mencari massa Ni maka menggunakan perbandingan:

begin mathsize 14px style fraction numerator massa space Ag over denominator ME space Ag end fraction equals fraction numerator massa space Ni over denominator ME thin space Ni end fraction fraction numerator space space space space space space space space 2 comma 16 over denominator 108 end fraction equals fraction numerator massa space Ni over denominator 29 comma 5 end fraction space massa space Ni space equals 0 comma 59 space gram end style

Jadi, massa nikel yang diendapkan adalah 0,59 gram.