molecular physics
Use the periodic table to find the following quantities: Find the relative molecular weight of the helium 𝑀𝑟(𝐻𝑒). 𝑀𝑟(𝐻𝑒) = 4.0026 Find the molecular weight as an amount of 𝑘𝑔/𝑚𝑜𝑙 for the ethanol. The formula of ethanol is C2H5OH Atomic weight: C = 12.011 g/mol, H = 1.008 g/mol, O