Chemistry, asked by Vk8674, 1 year ago

What is the volume of 10^21 molecules of oxygen at NTP

Answers

Answered by Jk15
14

volume occupied by one mole of gas is 22.4 L

We know there are 6.022X1023 particles of a substance in one mole of that substance.

Thus. volume occupied by 6.022X1023 molecules of oxygen = 22.4 L.

volume occupied by 1 molecule of oxygen = 22.4(6.022X1023)

volume occupied by 1021 molecule of oxygen = 22.4(6.022X1023)×1021=13.4×103


saiprasad8389: correct answer is 37.2mL
Answered by Yashraj2022sl
0

Answer:

Hence,  the volume of  10^{21} molecules of oxygen at NTP is 37.2cm^{3}.

Explanation:

Concept:

What is NTP?

It is abbreviated as Normal Temperature and Pressure defined Normal temperature is 20 ℃ or 293.15 K or 68 ℉.

The National Institute of Standards and Technology introduced NTP (NIST). NTP defines 20 °C as the normal temperature. Compared to 0 °C, the standard temperature of STP, this temperature is more convenient and realistic in the real world. Numerous companies all across the world adopt NTP as a more usable standard.

Formula for NTP:

V = \frac{nRT}{P}

where, n = number of moles, R = gas constant, T = Temperature,

            P = Pressure.

Calculation:

6.022 x 10^{23} molecules of oxygen at NTP occupy = 22400cm^{3}

So , 10^{21} molecules of oxygen at NTP occupy = \frac{10^{21} }{6.022 * 10^{23} } x 22400

                                                                            = 37.2cm^{3}

Therefore,  the volume of  10^{21} molecules of oxygen at NTP is 37.2cm^{3}.

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