## To find the mass of the helium in the blimp, we can use the ideal gas equation, which states:

PV = nRT

Where:

P is the absolute pressure in Pascal (Pa)

V is the volume in cubic meters (m^3)

n is the number of moles of gas

R is the ideal gas constant (8.314 J/(molÂ·K))

T is the temperature in Kelvin (K)

First, we need to calculate the number of moles of helium using the ideal gas equation. Rearranging the equation, we have:

n = PV / RT

Given:

P = 1.10 x 10^5 Pa

V = 4770 m^3

R = 8.314 J/(molÂ·K)

T = 274 K

Let's plug in the values and solve for n:

n = (1.10 x 10^5 Pa) * (4770 m^3) / (8.314 J/(molÂ·K) * 274 K)

Calculating this expression will give us the number of moles of helium.