1. Calculate the pressure, in atmosphere (atm), of 2 moles of helium gas in a 10 L container at 27°C. with solution and answer

What conclusion can you give about the laboratory equipments used in pharmaceutical analysis ?

One mole of phosphorus, with atomic mass of 30.97 amu, has greater number of atoms than one mole of boron, with atomic mass of 10.81 amu.

What is the true atom model in the atom chemistry)