1 / 7

Finding Empirical Formulas

Finding Empirical Formulas. Chapter 10. Steps. Change mass % values to grams. Convert grams to moles (1 step) Find the lowest ratio of moles-by dividing all of the values in step 2 by the smallest of the values in step 2.

sangela
Download Presentation

Finding Empirical Formulas

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. Finding Empirical Formulas Chapter 10

  2. Steps • Change mass % values to grams. • Convert grams to moles (1 step) • Find the lowest ratio of moles-by dividing all of the values in step 2 by the smallest of the values in step 2. • If necessary, multiply all resulting values by the same constant to get a whole number. • Use the whole numbers to write the empirical formula.

  3. Example #1 36.1%Ca, 63.9%Cl • 36.1g Ca, 63.9g Cl

  4. Example #2 13.6% C, 86.4% F • 13.6 g C, 86.4 g F

  5. Example #3 88.9% C, 11.1% H 1. 88.9g C, 11.1g H

  6. Example #4 20.2% Mg, 26.7% S, 53.2% O • 20.2g Mg, 26.7g S, 53.2g O

  7. Example #5 34.6% C, 3.9% H, 61.5% O 1. 34.6g C, 3.9g H, 61.5g O

More Related