New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Electrochemistry question

2022 · 29 Jun · Shift 2 · Q17

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Main
Chemistry
Electrochemistry
2022 · 29 Jun · Shift 2 · Q17

Electrochemistry question

2022 · 29 Jun · Shift 2 · Q17

JEE MainChemistryElectrochemistryNumerical+4 / −1

The cell potential for the given cell at 298 K Pt|

H_2

(g, 1 bar) |

H^+

(aq) ||

Cu^{2+}

(aq) | Cu(s) is 0.31 V. The pH of the acidic solution is found to be 3, whereas the concentration of

Cu^{2+}

is 10

-

x M. The value of x is

\underline{\hspace{2cm}}

. (Given :

E_{C{u^{2 + }}/Cu}^\Theta

= 0.34 V and

{{2.303\,RT} \over F}

= 0.06 V)

Numerical answer

More from Electrochemistry

In which of the following half cells, electrochemical reaction is pH dependent?2022 · MCQ
If the conductivity of mercury at 0 $\times$ C is 1.07 $\times$ 106 S m $-$ 1 and the resistance of a cell containing mercury is 0.243 $Ω$ , then the cell constant of the cell is x $\times$ 104 m $-$ 1. The value of x is …2021 · Numerical
A 5.0 m mol dm $-$ 3 aqueous solution of $K C l$ has a conductance of 0.55 mS when measured in a cell of cell constant 1.3 cm $-$ 1. The molar conductivity of this solution is mSm2 mol $-$ 1. (Round off to the…2021 · Numerical
A KCl solution of conductivity 0.14 S m $-$ 1 shows a resistance of 4.19 $Ω$ in a conductivity cell. If the same cell is filled with an HCl solution, the resistance drops to 1.03 $Ω$ . The conductivity of the HCl solution is $\times$ …2021 · Numerical
For the reaction 2 $F e^{3 +}$ (aq) + 2 $I$ $-$ (aq) $\to$ 2 $F e^{2 +}$ (aq) + $I_{2}$ (s) the magnitude of the standard molar Gibbs free energy change, $Δ$ rG $_{m}^{o}$ = $-$ kJ (Round off to the Nearest Integer). $[E_{F e^{2 +} / F e (s)}^{o} = - 0.440 V; E_{I_{2} /2 I^{-}}^{o} = 0.539 V; E_{F e^{3 +} / F e (s)}^{o} = - 0.036 V F = 96500 C]$ …2021 · Numerical
The molar conductivities at infinite dilution of barium chloride, sulphuric acid and hydrochloric acid are 280, 860 and 426 S cm2 mol $-$ 1 respectively. The molar conductivity at infinite dilution of barium sulphate is …2021 · Numerical
Potassium chlorate is prepared by electrolysis of $K C l$ in basic solution as shown by following equation. 6 $O H^{-}$ + $C l^{-} \to$ $C l O_{3}^{-}$ + 3 $H_{2} O$ + 6 $e^{-}$ A current of xA has to be passed for 10h to produce 10.0g of potassium chlorate. The…2021 · Numerical
Assume a cell with the following reaction $C u_{(s)} + 2 A g^{+} (1 \times 1 0^{- 3} M) \to C u^{2 +} (0.250 M) + 2 A g_{(s)}$ $E_{ce l l}^{Θ} = 2.97$ V Ecell for the above reaction is V. (Nearest integer)…2021 · Numerical