At \(298 \mathrm{~K}\), a 1 litre solution containing \(10 \mathrm{~mmol}\) of \(\mathrm{Cr}_2 \....

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At \(298 \mathrm{~K}\), a 1 litre solution containing \(10 \mathrm{~mmol}\) of \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}\) and \(100 \mathrm{~mmol}\) of \(\mathrm{Cr}^{3+}\) shows a pH of 3.0 .
Given: \(\mathrm{Cr}_2 \mathrm{O}_7^{2-} \rightarrow \mathrm{Cr}^{3+} ; \mathrm{E}^{\circ}=1.330 \mathrm{~V}\)and \(\frac{2.303 \mathrm{RT}}{\mathrm{F}}=0.059 \mathrm{~V}\)The potential for the half cell reaction is \(x \times 10^{-3} \mathrm{~V}\). The value of \(x\) is........... πŸ“²PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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