1 / 7

Percentage Composition

Percentage Composition. Percentage composition. Indicates the relative amount of each element present in a compound. Calculating percentage composition. Step 1 : Calculate molar mass Step 2 : Divide the subtotal for each element’s mass by the molar mass.

ccintron
Download Presentation

Percentage Composition

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. Percentage Composition

  2. Percentage composition • Indicates the relative amount of each element present in a compound.

  3. Calculating percentage composition • Step 1 : Calculate molar mass • Step 2 : Divide the subtotal for each element’s mass by the molar mass. • Step 3: Multiply by 100 to convert to a percentage.

  4. Example 1 • 1. Calculate the molar mass of water, H2O. • Step 1 – H- 2(1.01)= 2.02 • O – 1(16.0)= 16.0 • ________ • 18.02

  5. Step 2 2.02/18.02 X 100 = 11.21% • 16.0 /18.02 X 100 = 88.79 % • Water is composed of 11.21 % hydrogen and 88.79 % oxygen.

  6. Example 2 • Calculate the percentage composition of sucrose , C12H22O11.

  7. Example 3 • Find the percentage composition of hydrogen in sulfuric acid.

More Related