Chem120 week 4 Samenvattingen, Aantekeningen en Examens

CHEM120 Week 8 Final Exam (Version 4) -with 100% verified solutions-2023-2024

CHEM120 Week 8 Final Exam (Version 4) -with 100% verified solutions-

Solve these ideal gas law problems. Show all work for credit. 1. A gas occupies 250 mL at 739 mmHg. For a gas at constant temperature, determine the volume of gas at 514 mmHg. (1.5 points) 2. Use the molar volume of a gas, at STP, to determine the number of moles of CO2 in 4.00 L of CO2 gas. (1.5 points) 3. A sample of nitrogen (N2) has a volume of 50.0 L at a pressure of 2 ATM. What is the volume of gas at a pressure of 15 atm, if there is no change in temperature? (1.5 points) 4. A 0.6 L...

Week 4 Discussion: Chemistry in the World Around Us Required Resources Read/review the following resources for this activity: • Textbook: Chapter 9, 10, 13 • Lesson Initial Post Instructions While we often do not realize it, acidic and basic solutions are a part of our daily lives. Pick a solution in your home, work, or even outside (be sure to check the label to make sure that whatever you are measuring is nonhazardous and water based). Some possible solutions are shampoos, beverage...

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. 0 7 Short 16 7. (TCO 6) A sample of helium gas occupies 1021 mL at 719 mmHg. For a gas sample at constant tempera...

CHEM 120 Week 4 Concepts; The Ideal Gas Laws and Acid-Base Reactions

CHEM 120 Week 4 Concepts; The Ideal Gas Laws and Acid-Base Reactions

OL Lab 8: Acids and Bases Learning Objectives • Give examples of acids and bases from everyday life • Define pH and identify acids and bases using the pH scale • Apply the Bronsted-Lowry definition of acids and bases to chemical compounds • Describe the amphoteric and self-ionization capacity of water • Calculate the pH of a strong acid and base in the solution • Assess whether a neutralization reaction will occur • Evaluate the outcome of simple acid-base reactions

CHEM120 Students: The first exam in your science course is approaching. The General Education Academic Support is here to help. What can you do ahead of Exam 1? 1. Attend a live exam review Thursday, May 12th 6 PM MT Exam 1 Review Join Meeting here: Click here to join 2. Watch the recording of an exam review Click here to watch recorded exam review 3. Schedule a 1:1 appointment with a tutor Click here to book 4. Review the topic videos from weeks 1 and 2 Click her to review ...

CHEM-120 Intro to General, Organic & Biological Chemistry with Lab Week 4 Midterm Exam