Chem 120 chapter 1 - Study guides, Class notes & Summaries

CHEM 120 Week 1 Quiz 1. Question : (TCO 1) You have been growing the same variety of corn for over 5 years. In the past two years, you have noticed that the yield has decreased by 10% each year. You grow corn on 10 acres of land and your yield should be 1,000 bushels per acre. Growing conditions have been consistent for the past 5 years. You want to identify another variety of corn that will produce 1,000 bushels per acre. You currently grow Variety ZQB. You want to test two new varieti...

CHEM 120 Week 1 Quiz 1. Question : (TCO 1) You have been growing the same variety of corn for over 5 years. In the past two years, you have noticed that the yield has decreased by 10% each year. You grow corn on 10 acres of land and your yield should be 1,000 bushels per acre. Growing conditions have been consistent for the past 5 years. You want to identify another variety of corn that will produce 1,000 bushels per acre. You currently grow Variety ZQB. You want to test two new varieti...

CHEM 120 Unit 6 Quiz (100% Correct Solutions) Question 1. Question : (TCO 9) Which type of compound is CH3-CH2-CH2-CH3? Student Answer: Alkane Cycloalkane Haloalkane Ether Alkyne Points Received: 3 of 3 Comments: Question 2. Question : (TCO 9) Which is the name of this compound CH3-CH2-CH=CH-CH3 ? Student Answer: Pentene Methylbutane Octane Hexane Heptane Points Received: 3 of 3 Comments: Question 3. Question : (TCO 9) Which is the name of CH3-CH2-CH2OH? Student Answer: Propane Hexane Propanol B...

Chem. 120: week 4 Question 1: (TCO 6) A sample of helium gas occupies 520 mL at 79 mmHg. For a gas sample at constant temperature, determine the volume of helium at 45 mmHg. Student Answer: Boyles Law P1V1=P2V2 Temp is constant 79 mmHg x 520 mL= 45 mmHg x V2 41080= 45 mmHg x V2 912.88 mL=V2 Instructor Explanation: Chapter 6; Using Boyle’s law, P1V1 = P2V2. We have V1 (520 mL), P1 (79 mmHg) and P2 (45 mmHg). We want to determine V2, so V2 = (P1 x V1)/P2 = (520 mL * 79 ...

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