At 298 {\K}, a 1 litre solution containing 10 {\mmol} of {\Cr}_{2} {\O}_{7}{ }^{2-} and 100 {\mmol} of {\Cr}^{3+} shows a pH of 3.0. Given : {\Cr}_{2} {\O}_{7}^{2-} \to {\Cr}^{3+} ; {\E}^{0}=1.330 {\V} and {2.303 {\RT}}/{ {\F}}=0.059 {\V} The potential for the half cell reaction is {\x} \times 10^{-3} {\V}. The value of x is____ [24-Jan-2023 Shift 1]

JEE Mains 24-Jan-2023 Shift 1 Solved Paper

Section: Chemistry

Question : 55 of 90

Marks: +1, -0

At 298K, a 1 litre solution containing 10‌mmol of Cr2O7‌2− and 100‌mmol of Cr3+ shows a pH of 3.0.

Given : Cr2O72−→Cr3+;E0=1.330V and ‌

2.303‌RT

=0.059V
The potential for the half cell reaction is x×10−3 V. The value of x is____

[24-Jan-2023 Shift 1]

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