Blog 7 Due October 3, 2011

Suppose two 200 L tanks were filled separately with helium and hydrogen gas. What mass of each gas is needed to produce a pressure of 135 atm in its respective tank at 24 degrees Celsius?

AP Chem blog 6 due mon 9/26 at 9:00 am

Perform the following serial dilutions:

1.75 L of 0.33 M hydrochloric acid from a stock solution of 10 M hydrochloric acid

250 mL of .01 M acetic acid from a solution of 1.5 M acetic acid solution.

Use dimensional analysis to solve!

Blog 5 AP Chem

Explain how to prepare a 2.0L solution of each of the following solutions:
a. 0.25 M NaOH from 1.0 M stock NaOH solution
b. 0.100 M K2CrO4 from 1.75 M K2CrO4