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Perhatikan data potensial reduksi standar berikut! Au3++3e−→Au     Eo=+1,42 VCl2​+2e−→2Cl−     Eo=+1,36 VSn2++2e−→Sn     Eo=–0,14 VNa++e−→Na        Eo=–2,71 V  Reaksi berikut yang berlangsung tidak spontan adalah ....

Pertanyaan

Perhatikan data potensial reduksi standar berikut!

begin mathsize 14px style Au to the power of 3 plus sign and 3 e to the power of minus sign yields Au space space space space space E to the power of o equals plus 1 comma 42 space V Cl subscript 2 and 2 e to the power of minus sign yields 2 Cl to the power of minus sign space space space space space E to the power of o equals plus 1 comma 36 space V Sn to the power of 2 plus sign and 2 e to the power of minus sign yields Sn space space space space space E to the power of o equals – 0 comma 14 space V Na to the power of plus sign and e to the power of minus sign yields Na space space space space space space space space E to the power of o equals – 2 comma 71 space V end style 

Reaksi berikut yang berlangsung tidak spontan adalah ....

  1. begin mathsize 14px style Na forward slash Na to the power of plus sign forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

  2. begin mathsize 14px style Na forward slash Na to the power of plus sign forward slash forward slash Sn to the power of 2 plus sign forward slash Sn end style

  3. begin mathsize 14px style Cl to the power of minus sign forward slash Cl subscript 2 forward slash forward slash Sn to the power of 2 plus sign forward slash Sn end style

  4. begin mathsize 14px style Cl to the power of minus sign forward slash Cl subscript 2 forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

  5. begin mathsize 14px style Sn forward slash Sn to the power of 2 plus sign forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

S. Hidayati

Master Teacher

Mahasiswa/Alumni Universitas Indonesia

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah opsi C.

Pembahasan

A. begin mathsize 14px style Na forward slash Na to the power of plus sign forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

 begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E degree subscript sel space end cell equals cell space E degree subscript reduksi space – space E degree subscript oksidasi end cell row blank equals cell E degree Au bond E degree Na end cell row blank equals cell plus 1 comma 42 minus sign left parenthesis minus sign 2 comma 71 right parenthesis end cell row blank equals cell plus 4 comma 13 space V space open parentheses spontan close parentheses end cell end table end style
 

B. begin mathsize 14px style Na forward slash Na to the power of plus sign forward slash forward slash Sn to the power of 2 plus sign forward slash Sn end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E degree subscript sel space end cell equals cell space E degree subscript reduksi space – space E degree subscript oksidasi end cell row blank equals cell E degree Sn bond E degree Na end cell row blank equals cell negative sign 0 comma 14 minus sign left parenthesis minus sign 2 comma 71 right parenthesis end cell row blank equals cell plus 2 comma 57 space V space open parentheses spontan close parentheses end cell end table end style 
 

C. begin mathsize 14px style Cl to the power of minus sign forward slash Cl subscript 2 forward slash forward slash Sn to the power of 2 plus sign forward slash Sn end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E degree subscript sel space end cell equals cell space E degree subscript reduksi space – space E degree subscript oksidasi end cell row blank equals cell E degree Sn bond E degree Cl end cell row blank equals cell negative sign 0 comma 14 minus sign left parenthesis plus 1 comma 36 right parenthesis end cell row blank equals cell negative sign 1 comma 50 space V space left parenthesis tidak space spontan right parenthesis end cell end table end style 
 

D. begin mathsize 14px style Cl to the power of minus sign forward slash Cl subscript 2 forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E degree subscript sel space end cell equals cell space E degree subscript reduksi space – space E degree subscript oksidasi end cell row blank equals cell E degree Au bond E degree Cl end cell row blank equals cell plus 1 comma 42 minus sign left parenthesis plus 1 comma 36 right parenthesis end cell row blank equals cell plus 0 comma 06 space V space open parentheses spontan close parentheses end cell end table end style 
 

E. begin mathsize 14px style Sn forward slash Sn to the power of 2 plus sign forward slash forward slash Au to the power of 3 plus sign forward slash Au end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E degree subscript sel space end cell equals cell space E degree subscript reduksi space – space E degree subscript oksidasi end cell row blank equals cell E degree Au bond E degree Sn end cell row blank equals cell plus 1 comma 42 minus sign left parenthesis minus sign 0 comma 14 right parenthesis end cell row blank equals cell plus 1 comma 56 space V space open parentheses spontan close parentheses end cell end table end style
 

Jadi, jawaban yang tepat adalah opsi C.

70

4.6 (3 rating)

Yumna I.

Bantu banget Makasih ❤️

Pertanyaan serupa

Diberikan data deret Volta sebagai berikut. Li – K – Ba – Ca – Na – Mg – Al – Mn – Zn – Cr – Fe – Cd – Co – Ni – Sn – (H) –  Cu – Ag – Hg – Pt – Au Berdasarkan deret Volta di atas, logam berikut yan...

1rb+

0.0

Jawaban terverifikasi

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