How many particles can be stored in a 4.0 l container at room temperature (23c) and standard atmospheric pressure (101.3 kpa)

- There are particles in the container present at 23 degree C and 101.3 pKa.

Solution:- The given volume of the container is 4.0 L at 23 degree C and 101.3 kPa pressure.

We would calculate the moles using ideal gas law equation(PV = nRT) and then the moles are converted to particles on multiply the moles by Avogadro number.

Let's convert degree C to kelvin and pKa to atm.

T = 23 + 273 = 296 K

P = 101.3 pKa = 1 atm

R =

V = 4.0 L

n = ?

Let's plug in the values in the equation:

1(4.0) = n(0.0821)(296)

4.0 = n(24.3)

n = 0.165 mol

Let's multiply the moles by Avogadro number to get the number of particles:

= particles

So, from above calculations there would be particles in the container.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.