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borishaifa [10]
3 years ago
14

Which answer do you this is correct?

Chemistry
1 answer:
Brut [27]3 years ago
5 0

The fourth one: Gain of an electron

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an oxygen tank used for scuba diving has. avolume of 12.0 L .If the pressure of the tank is known to be 204.047 atm and the temp
Lapatulllka [165]

Answer: 101 moles of oxygen are contained in the tank

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 204.047  atm

V = Volume of gas = 12.0 L

n = number of moles  = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =22.0^0C=(22.0+273)K=295K

n=\frac{PV}{RT}

n=\frac{204.047atm\times 12.0L}{0.0821 L atm/K mol\times 295K}=101moles

Thus 101 moles of oxygen are contained in the tank

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3 years ago
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Answer: Theoretical yield is calculated based on the stoichiometry of the chemical equation. The actual yield is experimentally determined. The percent yield is determined by calculating the ratio of actual yield/theoretical yield.

Explanation:

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The nucleus is made of protons and neutrons. It has a positive charge.
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