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After you have submitted your exam, remember to immediately take a clear photo of your written work and to upload it through the proper link in this week’s module.    

Edit this Question Delete this Question Please use your removable webcam or laptop to do a brief scan of your work area.  If your webcam is removable, be sure to include an image of the monitor.  Be sure to follow the guidelines in the instructions to avoid a significant loss of points. 

How many grams of calcium nitrate must be diluted to 250.00 mL in water to produce a 1.75 M solution?

On a piece of paper, draw the best Lewis structure for the ozone molecule, O3, and answer the following questions here: a.  What is the electron geometry around the central oxygen atom? b.  What is the molecular geometry around the central oxygen atom? c.  What is the bond angle between the outer oxygen atoms? d.  What is the polarity of the molecule?  If there is a dipole, state the direction.

In your own words, explain why ammonia is a polar molecule, but ammonium is a nonpolar ion.

The Periodic Table and Formula Sheet can be accessed by right clicking on these links and opening the resource in a new tab or window.  Paper Copies are not allowed.

Which pH shown below would indicate a slightly acidic solution?

What would be the aqueous product formed when chloric acid is neutralized with sodium hydroxide? 

Write the balanced molecular, complete ionic, and net ionic equations for the neutralization of hydrochloric acid with calcium hydroxide.

What is the pH of a solution that has a hydronium ion concentration of 1.0×10-8 M?