Answer Happy

Learning Goal To use Avogadro's number to convert between microscopic units of atoms and molecules to the macroscopic world of chemical experiments A mole is a unit of matter that represents a known number of particles that is large enough to be weighed on a laboratory balance. One mole of substance contains 6.022 x 10 formula units, as shown in the following unit factor: 6022-10 formala unita 1 mol substance The value 6.022 x 10 is called Avogado's number. The term formula unit is a generic phrase that can mean a molecule, atom, ion, or whatever is represented by the chemical formula For example, a mole of He contains 6.022 x 10 helium atoms. A mole of Ny contains 6.022 x 10 diatomic Ny molecules but double that number of nitrogen atoms You can can extend the analysis to samples of a given mass using the molar mass of a compound, which is the mass of a mole of the compound. The molar mass of Na is 28.01 g/mol. Therefore you can say that a mole of N has a mass of 28.01 g and contains 6.022 x 10 molecules of the gas Part A 80 ΑΣΦΑ A flask contains 0.500 mol of liquid bromine, Bry. Determine the number of bromine molecules present in the flask Express your answer numerically in molecules View Available Hint(s) Submit Part B molecules You may know that a million is 10%, a billion is 10%, and a trition is 10¹ A trillion trition would be 104 which is also known as a seption VA24 CABARA M Pracon eenoord Ja The fuel used in many disposable lighters is liquid butane, CH. How many carbon atoms are in 1.50 g of bulane? Express your answer numerically in atoms. View Available Hint(e) carbon atoms