How many ideal gas molecules would be contained inside a 100 cc flask at room temperature and pressure

The answer is 2.68x10^21 molecules

Explanation:

The ideal conditions for an ideal gas are the following, in addition to the data provided by the exercise:

T = temperature = 273.15 K

P = pressure = 1 atm

V = volume = 100 cm^3 = 0.1 L

R = ideal gas constant = 0.082 atm*L/mol*K

n = number of moles = ?

the ideal gas formula is as follows:

P*V = n*R*T

Clearing n:

n = P*V/R*T = ((1 atm)*(0.1 L))/((0.082 atm*L/mol*K)*(273.15 K)) = 0.00446 mol

we use Avogadro's number to calculate the number of molecules:

Molecules = 0.00446 mol * 6.022x10^23 molecules/mol = 2.68x10^21 molecules

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia