Presentation on theme: "Weighing gases lab. Results 1.82346.82345.00CO 2 1.32346.32345.00O2O2 0.0835345.08345.00H2H2 Mass (g)Flask+gasFlaskGas # of molecules Moles (mol)Molar."— Presentation transcript:
Weighing gases lab
Results CO O2O H2H2 Mass (g)Flask+gasFlaskGas # of molecules Moles (mol)Molar mass (g/mol) Gas 2.49 x CO x O2O x H2H Density(g/L)
1.Law of Combining gas volumes: When measured at the same temp. and pressure, volumes of gaseous reactants and products of chemical reactions are always in simple ratios of whole numbers. Avogadro's theory: Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. 2.Yes. All 1 L flasks (same temp & pressure) held the same number of molecules. O2O2 H2H2 3.O 2 molecules are16x more massive (see molar masses): 4.The mole ratios in the balanced chemical equation.
# of molecules Moles (mol) Molar mass (g/mol) 2.49 x CH x CO x O2O x H2H CH CO O2O H2H2 Mass (g) Density(g/L) Flask +gasFlaskGas 5.
Avogadros Theory: Graphical Representation + hydrogenchlorine hydrogen chloride + carbon monoxideoxygencarbon dioxide + nitrogen hydrogenammonia For more lessons, visit