If 0.50 L of a 0.60 M SnSO_4 solution is el | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Initial moles of $Sn^{2+} = 	ext{Molarity} 	imes 	ext{Volume} = 0.60 \ M 	imes 0.50 \ L = 0.30 \ mol$. The reaction at the cathode is $Sn^{2+}

Vedclass · Accepted Answer

$0.257$

Vedclass · Answer

(D) Initial moles of $Sn^{2+} = 	ext{Molarity} 	imes 	ext{Volume} = 0.60 \ M 	imes 0.50 \ L = 0.30 \ mol$. The reaction at the cathode is $Sn^{2+} + 2e^- ightarrow Sn(s)$. Total charge passed $Q = I 	imes t = 4.60 \ A 	imes (30.0 	imes 60 \ s) = 8280 \ C$. Moles of electrons passed $= \frac{8280}{96500} \approx 0.0858 \ mol$. Moles of $Sn^{2+}$ deposited $= \frac{0.0858}{2} = 0.0429 \ mol$. Remaining moles of $Sn^{2+} = 0.30 - 0.0429 = 0.2571 \ mol$. Final concentration of $Sn^{2+} = \frac{0.2571 \ mol}{0.50 \ L} = 0.514 \ M$. Note: The provided options suggest a calculation error in the original question's source. Based on the standard calculation,the result is $0.514 \ M$.

If $0.50 \ L$ of a $0.60 \ M$ $SnSO_4$ solution is electrolyzed for a period of $30.0 \ min$ using a current of $4.60 \ A$ with inert electrodes,what is the final concentration of $Sn^{2+}$ remaining in the solution? (Atomic weight of $Sn = 119$)

Similar Questions

If a current of $0.5 \ A$ flows through a metallic wire for $2 \ hours$,then how many electrons would flow through the wire?

Write the reactions for the following processes:
$A$. Electrolysis of water at the anode and cathode.
$B$. Electrolytic reaction of molten $NaCl$.

Which of the following is produced by the electrolysis of molten $NaCl$?

Electrolysis of a dilute aqueous $NaCl$ solution is carried out by passing a current of $10 \, mA$. How much time will it take to liberate $0.01 \, mol$ of $H_2$ gas at the cathode? $(1 \, F = 96500 \, C \, mol^{-1})$

Which of the following will give $H_{2(g)}$ at cathode and $O_{2(g)}$ at anode on electrolysis using platinum electrodes?

Vedclass Test Series

Exam Paper Generator

Online Exam Module