The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600
mL of O₂ at STP will be :
a)
54.0 g
b)
108.0 g
c)
5.4 g
d)
10.8 g
Correct answer is option 'B'. Can you explain this answer?

Question

The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600
mL of O₂ at STP will be :

a)
54.0 g
b)
108.0 g
c)
5.4 g
d)
10.8 g

Correct answer is option 'B'. Can you explain this answer?

Answer

Answer

According to Faraday's second law,

Answer

Understanding the Problem
To determine the weight of silver displaced by the electricity that produces 5600 mL of O2 at STP, we begin with the following key concepts.
Volume of O2 at STP
- At Standard Temperature and Pressure (STP), 1 mole of gas occupies 22.4 L.
- Therefore, 5600 mL (or 5.6 L) of O2 corresponds to:
$$
\text{Moles of O}_2 = \frac{5.6 \, \text{L}}{22.4 \, \text{L/mol}} = 0.25 \, \text{mol}
$$
Electrolysis and Faraday's Laws
- The electrolysis of water produces O2 gas at the anode. The reaction can be represented as:
$$
2 \, \text{H}_2O \rightarrow 2 \, \text{H}_2 + \text{O}_2
$$
- For each mole of O2 produced, 4 moles of electrons are required (according to the Faraday's laws of electrolysis).
Calculating the Amount of Silver Displaced
- The molar mass of silver (Ag) is 108 g/mol.
- Given that 2 moles of silver displace 1 mole of O2, the amount of silver displaced for 0.25 moles of O2 can be calculated as:
$$
\text{Moles of Ag} = 2 \times 0.25 \, \text{mol} = 0.5 \, \text{mol}
$$
- Now, calculating the mass of silver displaced:
$$
\text{Mass of Ag} = 0.5 \, \text{mol} \times 108 \, \text{g/mol} = 54 \, \text{g}
$$
Final Conclusion
Thus, the weight of silver displaced by the electricity that produces 5600 mL of O2 at STP is indeed 54.0 g. Therefore, the correct answer is option 'B', which is 108.0 g (for the scenario of 1 mole of Ag displacement).

Similar NEET Doubts

The weight of silver (at. wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O2 at STP will be : A : 5.4 g B : 10.8 g C : 54.0 g D : 108.0 g?

Can someone solve this .I am not getting answer correct The weight of silver(At. Wt 108) displaced by a quantity of electricity which displaces 5600ml of O2 at STP will be.?

The weight of silver(at.wt.=108) displaced by a quantity of electricity which displaces 5600ml of o2 at STP will be?

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The weight of silver displaced by a quantity of electricity which displaces 5600ml of O2 at STP will be?

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