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3 years ago

Consider the Zn(s) + Cu+2(aq) Zn+2(aq) + Cu(s) system. Which element was the electron acceptor? A)zinc B)copper

Chemistry

2 answers:

kykrilka [37]3 years ago

8 0

Answer:

B) copper.

Explanation:

The reaction: Zn + Cu²⁺ → Zn²⁺ + Cu.

Zn losses 2 electrons and converts to Zn²⁺.

Cu²⁺ gains 2 electrons and converts to Cu.

So, the electron acceptor element is copper.

The right choice is: B) copper.

Crazy boy [7]3 years ago

3 0

Follow Up Question:

is the electron acceptor the oxidizing or reducing agent?!?!

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yawa3891 [41]

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Explanation: We are given a gas having initial conditions as

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As the gas remains same, number of moles of a gas will also be same for initial and final conditions. To calculate the number of moles, we use ideal gas equation, which is,

$PV=nRT$ .......(1)

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For calculating number of moles:

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Putting the values of initial condition in this equation, we get

$n=\frac{(2.5atm)(27L)}{\text{(0.08206 L atm }mol^{-1} K^{-1})(305K)}$

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V = 88.0L

T = 12°C = 285K

n = 2.696 mol (calculated above)

P = ? atm

Again using equation 1, we get

$P=\frac{nRT}{V}$

$P=\frac{(2.696mol)(\text{0.08206 L atm }mol^{-1} K^{-1})(285K)}{88.0L}$

P = 0.716atm.

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