Trace the pathway of a single oxygenated erythrocyte as it leaves the pulmonary capillaries to travel into systemic circulation.

14. (WCSU26, 5 points)  Draw the structure shown below and add curved arrows to show the movement of electrons to give another resonance contributor. Draw this second resonance contributor. Be sure to include lone pairs and formal charges on your structure as needed.   In the box below, enter the number of C-N bonds in your resonance structure.

(WCSU26) Consider the following bonds: C-C C-O Si-O a.  The longest bond is [blank1]. b. Rank the bonds in order of increasing polarity. least polar   [blank2]

(WCSU26) Refer to the structure of glutathione below to answer the following about angles a and b and atoms c and d. a. The bond angle about angle a is: [blank1] degrees b.  The bond angle about angle b is: [blank2] degrees c.  The electron domain geometry of atom c is: [blank4] d.  The molecular geometry of atom c is: [blank5] e.  The hybridization of atom d is: [blank3]

15. (WCSU26, 8 points) Draw the complete Lewis structures (including lone pairs and formal charges) for the following molecules/ions: a.  ClO2- b.  CH4O   Periodic Table   In the box below, enter the total number of lone pairs in the two structures (a+b).

(WCSU26) Rank the molecules (a, b, and c) in order of increasing carbon-oxygen bond strength.    weakest   [blank1]

(WCSU26) We often use theory (valence bond, hybridization, resonance, etc.) to explain experimental data. When resonance (delocalized pi bonding) is present in a structure, what you see is not always what you get.  In the structure shown, the bond angles about nitrogen are 120 degrees.     Based on this information, give the following information: a. Molecular geometry about the nitrogen atom: [blank1] b. Hybridization of the nitrogen atom: [blank2] c. Name type of orbital holds the lone pair: [blank3]

The salt concentration in ocean water is 0.217 moles/L.  What volume of ocean water, in liters, would contain 2.0 moles of salt?  Enter your answer with the appropriate number of significant figures

(WCSU26) Below is the structure of glutathione, a powerful antioxidant produced in the liver that plays a role in removing free radicals that can cause cell damage.  Identify the formal charges on the atoms A-D.  All the lone pairs are drawn in for you.  Labeled Atom Formal Charge A [blank1] B [blank2] C [blank3] D [blank4] , Periodic Table

Convert the equation to the standard CONIC form for a parabola. ie:  (         )2=4a(     ) Must show work on own paper.  Type answer in box.           x2 + 6x + 8y – 15 = 0