1: the symbol of the metal should be written first.
2: the valency of the elements or radicals should be interchanged.
Answer:
V = 11.21 L
Explanation:
Given data:
Volume of helium = ?
Number of moles = 0.500 mol
Temperature = 273.15 K
Pressure of gas = 1 atm
Solution:
Formula:
PV = nRT
R = general gas constant = 0.0821 atm.L/ mol.K
V = nRT/P
V = 0.500 mol × 0.0821 atm.L/ mol.K × 273.15 K / 1 atm
V = 11.21 L / 1
V = 11.21 L
A rod of a neutron-absorbing substance used to vary the output power of a nuclear reactor.
John Dalton is considered the father of the atomic theory. In 1800s he had came up with 5 concepts regarding the atomic theory.
Hope I helped.