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Review the two plausible Lewis structures of HCN. Which structure is the best representation of HCN. Provide a brief 2-3 sentence justification that explains how you arrived at your answer. (Final answer to this question must be included in the space below to receive credit)

An unknown gas is confined in a 275mL vessel at 35 and the internal pressure of the gas is 655 mmHg. (Work for all questions needs to be provided in the work sent to Dr. Metz after the exam is complete) a. Assuming ideal gas conditions, how many moles of the unknown gas are confined in the vessel? (Final answers to this question must be included in the space below to receive credit) b. The above vessel is cooled below the boiling point causing all the unknown gas vapor to condense to its liquid state. The mass of the condensed liquid is 3.45 grams, what is the density of the gas? Report the gas density if units of g/L. (Final answers to this question must be included in the space below to receive credit) c. Using the data above, calculate the molar mass of the unknown gas. (Final answers to this question must be included in the space below to receive credit)    

Refer to your final Lewis structure  HCP, question 3 above.  a. What is the electron domain number of the central atom? (Final answers to this question must be included in the space below to receive credit) b. What is the molecular geometry of HCP? (Final answers to this question must be included in the space below to receive credit) c. What is the predicted bond angle around the central atom? (Final answers to this question must be included in the space below to receive credit) d. What is the orbital hybridization of the central atom? (Final answers to this question must be included in the space below to receive credit)

Equations:     Avogadro’s constant: 6.022 X 1023 Ideal Gas Constant R = 0.08206 L·atm/mol·K Ideal Gas Constant R = 62.3 L·torr/mol·K  1 atm = 760 torr = 760 mm Hg = 1.01325 X 105 kPa = 101.325 kPa = 1.01325 bar          

Fall 2024 FINAL EXAMINATION                            ENC 1101 INSTRUCTOR’S NAME: Rachael Beers GENERAL DIRECTIONS:  Write a 700-word essay of at least five paragraphs, paying careful attention to organization, grammar, formatting, and mechanics.  Be certain your essay contains an introductory paragraph (including a clearly stated thesis statement), a minimum of three body paragraphs providing adequate support for each claim, and a concluding paragraph.  Your class notes, text, and a dictionary may be used. Use MLA formatting. You do not need sources or a works cited page.   Final Exam Name ______________________________ Fall 2024 ENC 1101-702 Word Count _________________________ Kristi Jordan 700+ Words   Follow these directions carefully:   1. Select one of the topics below. CIRCLE your choice.   Topics: A. Companies should be held fiscally responsible for their carbon footprint. B. Churches should not be allowed to engage in politics. C. Should employers screen applicants’ social media accounts in the hiring process? D. Is the electoral college still a productive approach to electing the U.S. President?   2. Skip every other line as you write.   3. Write a 700-word essay supporting your thesis.   4. Select one of the following four strategies for your essay. CIRCLE your choice.   exemplification cause/effect comparison/contrast argumentation   5. You may use a dictionary, a thesaurus, and/or a word book.   NOTE: The quality of your content, organization, and mechanics will be the basis for determining your grade. 

  Last and not least, this is a question involving a condition that affects most of us… whether in the car or on a boat, airplane, or roller coaster.  You may have to look this one up in the book but the answer is fairly intuitive.  Motion sickness seems to ________.  

  What is the main function of the rods in the eye?  

  Which division functions to conserve energy and replenish the supply of nutrients?  

  Which of the following is NOT a result of parasympathetic stimulation?  

  BONUS #9:    Which of the following is the best explanation of how a stimulus’s strength is transmitted to the central nervous system from sensory nerves?