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UNO [17]
2 years ago
13

How many moles are 6.022(10^23) atoms of sodium

Chemistry
1 answer:
nasty-shy [4]2 years ago
7 0
There is only one mole
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Answer:

0.26×10²³ molecules

Explanation:

Given data:

Volume of gas = 1.264 L

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Temperature = 168°C (168+273= 441 K)

Pressure = 946.6 torr (946.6/760 = 1.25 atm)

Now we will determine the number of moles.

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

n = PV/RT

n = 1.25  atm ×1.264 L / 0.0821 atm.L/ mol.K   ×441 K

n = 1.58 /36.21 /mol

n = 0.044 mol

Now we will calculate the number of molecules by using Avogadro number.

1 mol = 6.022×10²³ molecules

0.044 mol × 6.022×10²³ molecules/ 1mol

0.26×10²³ molecules

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