1 / 21

Understanding the Arithmetic of Chemical Equations and Stoichiometry

This section delves into the fundamental concepts of chemical equations and their applications in chemistry. It illustrates how balanced chemical equations are akin to recipes, providing essential quantitative information for calculations. Chemists leverage these equations to determine the amounts of reactants needed or products formed in a reaction. The discussion also covers mole ratios as crucial tools for converting between moles of reactants and products, emphasizing their significance in stoichiometry. Additionally, the content includes problem-solving strategies with guided tutorials for practical understanding.

preston
Télécharger la présentation

Understanding the Arithmetic of Chemical Equations and Stoichiometry

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. Ch. 12

  2. 12.1 The Arithmetic of Equations • More than 3000 cocoons are needed to produce enough silk to make just one elegant Japanese kimono. Like silk manufacturers, chemists must know how much reactant they need to make a certain amount of product. Determining the quantities of reactants and products in a reaction requires a balanced chemical equation.

  3. 12.1 Using Everyday Equations • Using Everyday Equations • How is a balanced equation like a recipe?

  4. 12.1 Using Everyday Equations • A balanced chemical equation provides the same kind of quantitative information that a recipe does.

  5. 12.1 Using Everyday Equations • An equation can represent the manufacturing of a single tricycle.

  6. 12.1 Using Balanced Chemical Equations • Using Balanced Chemical Equations • How do chemists use balanced chemical equations?

  7. 12.1 Using Balanced Equations • Chemists use balanced chemical equations as a basis to calculate how much reactant is needed or product is formed in a reaction. • The calculation of quantities in chemical reactions is a subject of chemistry called stoichiometry.

  8. 12.2 Writing and Using Mole Ratios • Writing and Using Mole Ratios • How are mole ratios used in chemical calculations?

  9. 12.2 • In chemical calculations, mole ratios are used to convert between moles of reactant and moles of product, between moles of reactants, or between moles of products.

  10. 12.2 Writing and Using Mole Ratios • Mole-Mole Calculations • A mole ratio is a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles.

  11. 12.2 Writing and Using Mole Ratios • To determine the number of moles in a sample of a compound, first measure the mass of the sample. Then use the molar mass to calculate the number of moles in that mass.

  12. Problem Solving 12.12 Solve Problem 12 with the help of an interactive guided tutorial.

More Related