An ice cube is placed in a plastic cup on the lab table. students record the mass of the ice cube and the plastic cup as 5 grams. one hour later the ice cube completely melts, turning into liquid water. then the students record the mass of the water and the cup. what is the mass of the water and the plastic cup?

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

In apex! a liquid heated beyond a certain temperature becomes

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.