Domanda apertaWrite a conversion factor for the relationship between grams and a mole of fe.1212views
Domanda apertaCalculate the mass of 25,000 molecules of nitrogen gas. (1 mole = 6.02 x 1023 molecules)1686views
Domanda apertaOne atom of gold weighs 3.27 x 10-13 ng. how many gold atoms are in 1.0 g of gold?1437views
Domanda apertaA rigid vessel contains 2.5 mol of H2(g). How many grams of hydrogen are in the vessel?1256views