Chem120 week 5 exam Study guides, Class notes & Summaries
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CHEM 120 FINAL EXAM (Version 3 ) Latest Complete Questions & Answers, Already Graded A; Chamberlain.
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CHEM 120 FINAL EXAM 6. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 25 degrees C. Show your work. (Points : 5) 7. (TCO 6) A sample of helium gas occupies 1021 mL at 719 mmHg. For a gas sample at constant temperature, determine the volume of helium at 745 mmHg. Show your work. (Points : 5) 8. (TCO 12) If one strand of a DNA double helix has the sequence T T A G C G A C G C, what is the sequence of the other DNA str...
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CHEM 120 Week 8 Final Exam A+ GRADED
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CHEM 120 Week 8 Final Exam A+ GRADED 
 
6. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 25 degrees C. Show your work. (Points : 5) 
 
 Using Charles’ Law, (V1/T1) = (V2/T2). 
First, convert temperature to KELVIN (T1 = t1 +273) 
Thus, T1 = 95 + 273 = 368. 
 
We have V1 (165 mL) & T2 = (25 + 273) = 298. 
V2 = (V1*T2)/T1 = (165 mL*298)/368 = 133.6 mL. 
 
7. (TCO 6) A sample of helium gas occupies ...
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CHEM120 FINAL EXAM -WEEK 8- PAGE 3- 100%
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CHEM120 FINAL EXAM -WEEK 8- PAGE 3- 100% 
Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine the number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. 
(b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. 
Question: (TCO 7) (a, 5 pts) What is the mass/volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make ...
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CHEM 120 Unit 8 Final Exam (Version 1): Session 2020
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CHEM120 Final Exam Page 3 (TCO 8) 35.0 mL of 0.25 M NaOH is neutralized by 23.6 mL of an HCl solution. The molarity of the HCl solution is (show your work): (TCO 1) How many mL are in 3.5 pints? Show your work. (TCO 3) What is the name of the following compound: Zn3P2? (TCO 3) What is the name of the following compound: AgNO3? (TCO 6) Calculate the pressure, in atmospheres, of 2.78 mol CO(g) in a 4.25 L tank at 51 degrees C. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165...
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CHEM 120 Unit 8 Final Exam (Version 1) 2020
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6. (TCO 6) A gas at a temperature of 95 degrees C occupies a volume of 165 mL. Assuming constant pressure, determine the volume at 25 degrees C. Show your work. (Points : 5) 
 
 Using Charles’ Law, (V1/T1) = (V2/T2). 
First, convert temperature to KELVIN (T1 = t1 273) 
Thus, T1 = 95 273 = 368. 

We have V1 (165 mL) & T2 = (25 273) = 298. 
V2 = (V1*T2)/T1 = (165 mL*298)/368 = 133.6 mL. 

7. (TCO 6) A sample of helium gas occupies 1021 mL at 719 mmHg. For a gas sample at constant...
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CHEM 120 Week 4 Midterm Exam, CHEM 120 Final Exam, CHEM 120 Week 8 Final Exam Review, CHEM 120 Quiz 1, Quiz 2, Quiz 3, Quiz 4, Quiz 5, CHEM120 Course Title: Introduction to General, Organic & Biological Chemistry with Lab Chamberlain College of Nursing
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CHEM 120 Week 4 Midterm Exam, CHEM 120 Final Exam, CHEM 120 Week 8 Final Exam Review, CHEM 120 Quiz 1, Quiz 2, Quiz 3, Quiz 4, Quiz 5, CHEM120 Course Title: Introduction to General, Organic & Biological Chemistry with Lab Chamberlain College of Nursing
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