014 (part 1 of 3) 10.0 points The molecular mass of helium is 4 g/mol, the Boltzmann constant is 1.38066 x 10 23 J/K, the universal gas constant is 8.31451 J/K mol, and Avogadro's number is 6.02214 x 10 1/mol. Given 1 atm 101300 Pa. How many atoms of helium gas are required to fill a balloon to diameter 24 cm at 75 Cand 0.981 atm? 015 (part 2 of 3) 10.0 points What is the average kinetic energy of each helium atom?