If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?
To find the number of moles of gas in the balloon, we can use the ideal gas law equation:
PV = nRT
Where:
P = pressure of the gas (in Pascal)
V = volume of the gas (in cubic meters)
n = number of moles of gas
R = ideal gas constant (8.314 J/mol·K)
T = temperature of the gas (in Kelvin)
In this case, we have the pressure (1 * 10^5 Pa), but we don't have the volume or temperature. Therefore, we cannot directly calculate the number of moles. More information is needed to solve this problem.