10.38 (a) If the pressure exerted by ozone, O3, in the stratosphere is 3.0 X 10-3 atm and the temperature is 250 K, how many Ozone molecules are in a liter? (b) Carbon dioxide makes up ap- proximately 0.04% of Earth's atmosphere. If you collect a 2.0-L sample from the atmosphere at sea level (1.00 atm) on a warm day (27 °C), how many CO2 molecules are in your sample?

8.112

Acetic acid and ethanol react to form ethyl acetate and water, like this: HCH₂ CO₂(aq) +C₂HOH(aq) → C₂H₂CO₂CH₂(aq)+ H₂O(1) Imagine 196. mmol of C₂H₂CO₂CH3 are added to a flask containing a mixture of HCH3CO₂, C₂HOH, C₂HCO₂CH3 and H₂O at equilibrium, and then answer the following questions. What is the rate of the reverse reaction before any C₂H5CO₂CH3 has been added to the flask? What is the rate of the reverse reaction just after the C₂H5CO2CH3 has been added to the flask? What is the rate of the reverse reaction when the system has again reached equilibrium? How much more C₂H5CO₂CH3 is in the flask when the system has again reached equilibrium? Zero. Greater than zero, but less than the rate of the forward reaction. Greater than zero, and equal to the rate of the forward reaction. Greater than zero, and greater than the rate of the forward reaction. O Zero. Greater than zero, but less than the rate of the forward reaction. Greater than zero, and equal to the rate of the forward…

(6.9: Similar to Example 6.15 & For Practice 6.15) Find the ratio of effusion rates of argon gas and chlorine gas. O 0.751 O 1.33 O 3.15 O 0.317

80 %24 dl 4 in 7. 9. 5. 4. 3 23 2 IIO K. change the volume to 29.0 L. The pressure and number of particles remain constant. Calculate the Kelvin temperature to which 15.0 L of a gas at 26°C would have to be heated to

#50 delta e = delta h at constap p - P delta v Is this as simple as reasoning that if the number of moles are the same then an example a, E equals H,    in b Number of moles  hence the volume goes down so h greater than e ?  Not sure

3:04 A) H₂ Which of the following molecules would exhibit the most ideal behavior? B) 0₂ C) N₂ D) He Question 19 of 21 E) Ne Submit Tap here or pull up for additional resources