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Diketahui: Sn(s)+Cu2+(aq)→Sn2+(aq)+Cu(s)    E∘=+0,48 volt Pb2+(aq) + 2e−→Pb(s)                        E∘=−0,13 volt Cu2+(aq) + 2e−→Cu(s)                       E∘=+0,34 volt Tentukan potensial standar untuk reaksi berikut! Sn(s)+Pb2+(aq)→Sn2+(aq)+Pb(s)

Pertanyaan

Diketahui:


Sn open parentheses italic s close parentheses and Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis yields Sn to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus Cu open parentheses italic s close parentheses space space space space E degree equals plus 0 comma 48 space volt space Pb to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign yields Pb open parentheses italic s close parentheses space space space space space space space space space space space space space space space space space space space space space space space space E degree equals minus sign 0 comma 13 space volt space Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign yields Cu open parentheses italic s close parentheses space space space space space space space space space space space space space space space space space space space space space space space E degree equals plus 0 comma 34 space volt


Tentukan potensial standar untuk reaksi berikut!


Sn open parentheses italic s close parentheses and Pb to the power of 2 plus sign left parenthesis italic a italic q right parenthesis yields Sn to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus Pb open parentheses italic s close parentheses

Z. Hardi

Master Teacher

Mahasiswa/Alumni Universitas Riau

Jawaban terverifikasi

Jawaban

potensial standar untuk reaksi Sn dan Pb to the power of bold 2 bold plus sign adalah bold plus bold 0 bold comma bold 01 bold space bold volt.

Pembahasan

Sn open parentheses italic s close parentheses and Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis yields Sn to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus Cu open parentheses italic s close parentheses space space space space space space space open angle brackets reaksi space tetap close angle brackets space space Pb to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign yields Pb open parentheses italic s close parentheses 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 space open angle brackets reaksi space tetap close angle brackets Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign yields Cu open parentheses italic s close parentheses 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 open angle brackets reaksi space dibalik close angle brackets


Kemudian reaksinya dijumlahkan sebagai berikut:


Sn open parentheses italic s close parentheses and Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis yields Sn to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus Cu open parentheses italic s close parentheses space space space space E degree equals plus 0 comma 48 space volt space Pb to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign yields Pb open parentheses italic s close parentheses space space space space space space space space space space space space space space space space space space space space space space space space E degree equals minus sign 0 comma 13 space volt space bottom enclose Cu open parentheses italic s close parentheses yields Cu to the power of 2 plus sign left parenthesis italic a italic q right parenthesis space plus space 2 e to the power of minus sign space space space space space space space space space space space space space space space space space space space space space space space E degree equals minus sign 0 comma 34 space volt space space space subscript plus end enclose Sn open parentheses italic s close parentheses and Pb to the power of 2 plus sign left parenthesis italic a italic q right parenthesis yields Sn to the power of 2 plus sign left parenthesis italic a italic q right parenthesis plus Pb open parentheses italic s close parentheses space space space space space E degree equals plus 0 comma 01 space volt


Dengan demikian, potensial standar untuk reaksi Sn dan Pb to the power of bold 2 bold plus sign adalah bold plus bold 0 bold comma bold 01 bold space bold volt.

956

5.0 (2 rating)

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Jawaban terverifikasi

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