CHEM20ASG3-8 - NAME CHEMISTRY 20 ASSIGNMENT 3-8 TOPIC(S...

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NAME ________________________ CHEMISTRY 20 ASSIGNMENT 3-8 TOPIC(S) COVERED: Text (126-151) TOTAL MARKS: 50 DIRECTIONS: Read pages 126-151 and complete the following questions. Read each question carefully and place your answer on this sheet. Please show all your work unless otherwise indicated. 1. A sample of gas has a volume of 525 mL at 300 K and 746 mmHg. Find the volume if the temperature increases to 350 K and the pressure increases to 780 mmHg. (4 marks) 2. A sample of gas has a volume of 75 mL at 19.0 °C and 120 kPa. Predict what its volume would be at 25 °C and 100 kPa. (4 marks) 3. A chemical researcher produces 15 mL of a new gaseous substance in a laboratory at a temperature of 25 °C and pressure of 100 kPa. Predict the volume of this gas if the temperature was changed to 0.0 °C and the final pressure was 101.325 kPa. (4 marks) 1
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4. A 2.7 L sample of nitrogen gas is collected at a temperature of 45.0 °C and a pressure of 0.92 atm. What pressure would have to be applied to the gas to reduce its volume to
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CHEM20ASG3-8 - NAME CHEMISTRY 20 ASSIGNMENT 3-8 TOPIC(S...

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