Calculate the molar mass of the Phosphorous molecule,P4?
Calculate the molar mass of the following substances:
(a) Ethyne, C2H2
(b) Sulphur molecule, S8
(c) Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
(d) Hydrochloric acid, HCl
(e) Nitric acid, HNO3
Calculate the number of molecules of phosphorous (p4) present in 248g of solid phosphorous. ( given atomic mass of phosphorous=31.0u No=6.022x1023 per mole )
One molecule of calcium phosphate reacts with silica and coke and gives rise to calcium silicate, phosphorous and carbon monoxide . calculate the mass of carbon monoxide obtained.
Calculate the molar mass of the sulfur molecule, S8.