Acetic acid is a weak acid with a pka of 4.76. what is the concentration of acetic acid in a buffer solution of 0.2m at ph 4.9. give your answer in m but as a numeral only to 3 decimal places.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

How does the motion of particles in a gas change as the gas cools