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CHEM 120 Week 8 Lab Practicum Online

1. Question: If a patient has fever of 103 ^◦F, convert it in degree Celsius
2. Question: You are given 500 mg NaCl. If it is dissolved in 7.5 mL water what would be the density in g/mL?
3. Question: Provide name of the following organic compound
   CH3-NH2
4. Question: Provide structural formula of the following organic compound (3 points).
   Ethyl amine
5. Question: You are given a pH meter and a series of solutions (solutions A, B and C). When you measured pH, the results were as follows: pH of solution A= 5.0; pH of solution B= 3.5; pH of solution C= 8. Rank the solutions from most acidic to least acidic. (6 points)
6. Question: Balance the following reaction (3 points). If the reaction is carried out using 8 moles of KHCO3, how many moles of K2SO4 will be produced (3 points)? 
   H2SO4 + KHCO3  K2SO4 + CO2 + H2O
7. Question: Based on given atoms or ions, write names and formulasof the compounds (2 points). Identify the compounds as ionic or covalent A compound made of Barium and phosphate
8. Question: Based on given atoms or ions, write names and formulasof the compounds (2 points). Identify the compounds as ionic or covalent (1 point).
   

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CHEM 120 Week 8 Lab Practicum Online

1. Question: (CO 1) What was the independent variable in this experiment? (3 points)
2. Question: (CO 1) What theory could you produce based off these results? (3 points)
3. Question: (CO 1) List two controls that were held constant for this experiment or that you would hold constant for this experiment. (4 points, 2 points each).
4. Question: (CO 7) Select all solutions that have a basic pH value. Select all that apply)
5. Question: (CO 6) Which of the following solutions do you believe would have the greatest H3O+ concentration? (3 points)
6. Question: (CO 7) One of these solutions contains a strong acid. Which of these compounds would you expect this is? (3 points)
7. Question: (CO 3) Based on the conductivity results here, select the compounds that would be considered ionic. Select all that apply. (3 points)
8. Question: (CO 6) What would be the % concentration of the NaF solution?
9. Question: (CO 2) What is the name of the substance MgCl2?
10. Question: (CO 1) When dissolved in solution, NaF will separate to produce Na+ ions and F- ions. How many electrons will be in the F-   ion?
11. Question: (CO 8) Give BOTH the name of the functional group in the organic molecule as well as the name of the organic molecule? (1 point for group, 2 points for name)
12. Question: What is the structural formula for the compound above? (3 points)
13. Question: (CO 3) Based on the structure above, what would be the best way to describe the bond between the O and the H? (3 points)
14. Question: You move the balloon to an adjacent room where the temperature is about 31 degrees Celsius. Assume that the temperature is the only variable changing. You would expect: (3 points)
15. Question: You place the balloon a few meters underwater where the pressure is 1.2 ATM underwater (assume no change in temperature). You would expect: (3 points)
16. Question: (CO 9) This chunk of material is decaying by electron What is the product of this decay? (3 points)
17. Question: (CO 9) What % of this sample will remain after 5 years. (3 points)
18. Question: (CO 4) You react chemicals in a flask and observe the reaction Balance this chemical Equation. Mg3P2  + CaS → MgS + Ca3P2. (3 points)