You have a container of laughing gas with an internal pressure of 7.5 atm. The container is 13 cm^3. You transfer this gas to a person's mouth that is 25 cm^3 large. What is the internal pressure of the mouth?

2. how is heavy water different from normal water

An observation that requires measurement is called quantitative observable or qualitative

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.