Chemistry Honors – Class 30

Dates

• Period A – Wednesday, March 12th
• Periods C, D – Tuesday, March 13th

Return Exam

• using “train tracks” is always the preferred way when possible without getting intermediate answers
• be sure and state the overall principle using equations (without numbers ) at the start
• solve without numbers where possible
• show your work logically and in a step-wise manner (make it easy to see your work)

Lab Activity – Boyle’s Law

• Lab handout in the “Laboratory” folder
• Follow the directions for the lab
• record all information in your LNB

Homework

• Finish answering lab questions in LNB
• this is NOT a formal lab but you should be clear and concise with all information

FYI – Lab Analysis Questions (WE NEVER “CONNECT THE DOTS”)

• In your lab notebook you should plot a graph of the volume (“Y”) as a function of the pressure (“X”) of the gas. Be sure and take time to make a clear graph that occupies most of the lab page (it should be the only thing on the lab page). A ruler is your best friend.
• Draw the smoothest line possible through the data. You should use a pencil to sketch a line before finalizing your result using a pen in your lab notebook.
• If the result is NOT a straight line, identify a graph that could be plotted that would produce a straight line using this data,
• What type of relationship exists between the pressure and volume of a gas?
• What factors impacted your collecting the data? How did they impact your result?How does this relationship compare to the known relationship as expressed by Boyle’s Law?