1 / 6

Periodic Properties

Periodic Properties. Unit 5. Pre-Lab Write-Up. The following are due before you can do the lab: Title Purpose (be specific) Materials (optional) Procedure (be specific) Data Table(s). Post-Lab Write-Up. The following will be completed once you have completed the lab:

havily
Download Presentation

Periodic Properties

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. Periodic Properties Unit 5

  2. Pre-Lab Write-Up • The following are due before you can do the lab: • Title • Purpose (be specific) • Materials (optional) • Procedure (be specific) • Data Table(s)

  3. Post-Lab Write-Up • The following will be completed once you have completed the lab: • Data Analysis/Calculations • Graph • Conclusion

  4. Data Analysis/Calculations • Show calculation for the density of each element, include proper unit, and watch for sig. figs. • Density = mass (g) / ∆volume (mL) • Calculate the percent error of the density of Ge and C. (this will be done after making the graph). Exp - Act Act % Error = x 100 Act. Density of C = 1.4 g/mL Act. Density of Ge = 5.3 g/mL

  5. Graph • Construct a graph of density vs. atomic number (plot density on the y-axis and atomic number on the x-axis; both axes MUST start at zero.) • Draw a best fit line through your data • Use the graph to interpolate the density of Ge and extrapolate the density of C • Include appropriate markings on the graph for the unknown densities • Follow all graphing techniques discussed in class

  6. Conclusion • In your conclusion you should examine the results of your lab. • What values did you determine for the densities of Ge and C to be? • How were you able to determine the densities of these two elements? (EXPLAIN) • Were the results close to what they were supposed to be (examine your percent error)? • Why did you have error in your lab; what could you/would you do differently next time?

More Related