exp10_ld

exp10_ld - Answer 2. What is the pressure exerted by 1.8...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Name Your name Lab Day and Time TA TA's name Room Room C HEMISTRY 21L L EARNING D EVICE EXPT. Experimenting with Gas Laws 10 10 For calculations, you must show all of your work and include appropriate units to receive full credit. Answers to the discussion questions should be in the form of complete sentences. 1. a) What is an ideal gas? Write the ideal gas equation and define each term in the equation with appropriate units when R = 0.08206 L-atm/mol-K. (3 pts) Answer b) With respect to the ideal gas equation, which term is the independent variable in Part F of this experiment? Which term is the dependent variable? Which variables are held constant? (2 pts) Answer c) In Part G of this experiment, which variable is the independent variable? Which is the dependent variable? Which variables are held constant? (2 pts)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Answer 2. What is the pressure exerted by 1.8 mol O 2 in a 8.0 L flask at 32 o C? (4 pts) Answer 3. The mathematical expression for a linear relationship is y = mx +b . Define each variable. (2 pts) Answer 4. A table that describes the composition of dry air is given below. The density of dry air is 0.001185 g/mL at 25 o C and 1.0 atm. Composition of Dry Atmospheric Air Constituent Molar Mass (g/mol) Percent Composition N 2 28.01 78.08 O 2 32.00 20.95 CO 2 44.01 0.033 Ar 39.95 0.934 a) Using the information given above, determine the molar mass of air. (3 pts) Answer b) Using the molar mass that was calculated in part a), determine the moles of air in a 250-mL Erlenmeyer flask. (4 pts) Answer...
View Full Document

This note was uploaded on 06/10/2010 for the course CHEM 102L taught by Professor N/a during the Spring '07 term at UNC.

Ask a homework question - tutors are online