1 / 11

Podcast 8.1 The Meaning of A Balanced Equation

Podcast 8.1 The Meaning of A Balanced Equation. Consider: 4NH 3 + 5O 2  6H 2 O + 4NO. For every 4 Ammonias and 5 Oxygens , you can make 6 Waters and 4 Nitrogen Monoxides Chemists say “for every 4 moles of NH 3 , 5 moles of O 2 are required, etc.”

nellis
Télécharger la présentation

Podcast 8.1 The Meaning of A Balanced Equation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Podcast 8.1The Meaning of A Balanced Equation

  2. Consider: 4NH3 + 5O2 6H2O + 4NO • For every 4 Ammonias and 5 Oxygens, you can make 6 Waters and 4 Nitrogen Monoxides • Chemists say “for every 4 moles of NH3, 5 moles of O2 are required, etc.” • “Stoichiometry” refers to the relative quantities of moles. It also refers to calculations that make use of mole ratios.

  3. Balanced Equations are Like Recipes • The recipe for a cheese sandwich: • Predict how many cheese sandwiches, as defined by the picture to the right, you can make if you have 6 pieces of bread and 4 slices of cheese.

  4. If I need to make 14 sandwiches, how many slices of bread do I need?

  5. The Chemistry Café cook has a loaf which had 33 slices and a package of cheese that has 15 slices. He is making sandwiches that have 2 pieces of both bread and cheese. How many sandwiches can he make?

  6. Another Kind of Recipe • Atricyclefactorygetsashipmentwith 400 seatsand 600 wheels. Use your ideas about Limiting Reactants to explain how you would figure out how manytricyclescanbemade.

  7. Example One Consider : 4NH3 + 5O2 6H2O + 4NO How many moles of H2O are produced if 0.176 mol of O2 are used?

  8. Example Two Consider : 4NH3 + 5O2 6H2O + 4NO How many moles of NO are produced in the reaction if 17 mol of H2O are also produced?

  9. Example Three Consider : 4NH3 + 5O2 6H2O + 4NO How many grams of H2O are produced if 1.9 mol of NH3 are combined with excess oxygen?

  10. Example Four Consider : 4NH3 + 5O2 6H2O + 4NO How many grams of O2 are required to produce 0.3 mol of H2O?

  11. Example Five Consider : 4NH3 + 5O2 6H2O + 4NO How many grams of NO is produced if 12 g of O2 is combined with excess ammonia?

More Related