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arsen [322]
2 years ago
5

What is the volume of 120 x 1022 molecules of nitric oxide gas, NO, at si B) 2.24L C) 0.0199 L D) 5.02 A) 1120 L

Chemistry
1 answer:
Allisa [31]2 years ago
5 0

Answer: 44.8 L

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

Standard condition of temperature (STP)  is 273 K and atmospheric pressure is 1 atm respectively.  

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadro's number}}=\frac{120\times 10^{22}}{6.023\times 10^{23}}=2moles

1 mole of NO occupies volume = 22.4L at STP

Thus 2 moles of magnesium react with=\frac{22.4}{1}\times 2=44.8L

Thus the volume of 120\times 10^{22} molecules of nitric oxide gas is 44.8 L.

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