What is the partial pressure (in mm Hg) of neon in a 4.00 L vessel that contains 0.838 mol

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

Ajar contains a certain substance. which observation would show that the substance must be either a solid or a liquid?