How many moles of neon gas are there if 25.0 liters of the gas are at 5.0 with a pressure of 89.9kpa

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.

One similarity and one difference between an element and a mixture of elements

Deferentiate volatile and non volatile acid