Chemistry, asked by ksaisumedhostlmk, 1 year ago

5000 molecules are present in a sample hydrogen gas having a volume V at STP. Calculate the volume of nitrogen gas which has 2.5*10^8

Answers

Answered by ChiragMeher
0
You can determine the volume of 3.0 x 1025molecules of Neon at STP using the ideal gas law : PV = nRT, solving for V. You must convert the molecules of Neon to moles using Avagadro's number, 6.022 x 1023. STP for gas laws is 0oCand 1 atm. You will need to convert the Celsius temperature to Kelvins, which is the temperature scale used in the gas laws.

Convert molecules of Neon to moles.

3.0 x 1025 molecules Ne x 1 mol Ne/6.022 x 1023molecules Ne = 49.82 moles Ne 
(I'm leaving some guard units to reduce rounding errors.)

Given/Known:
P = 1 atm
n = 49.82 moles
R = 0.08205746 L atm K−1mol−1
T = 0oC+273.15=273.15K

Unknown:
Volume

Equation:
PV = nRT

Solution:
Divide both sides of the equation by P. Solve for V.

V = nRTP 
V = 49.82 moles x 0.08205746 L atm K−1mol−1 x 273.15K/1 atm = 1100 L 
(The answer is rounded to two  scientifiction figures because 3.0 x 1025 has two significant figures.)

Answer:
The volume of 3.0 x 1025 molecules Ne at STP is 1100 L.


ksaisumedhostlmk: ohhk..But for hydrogen?
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