Calculate the freezing point of a solution containing 25 grams of kcl and 2750.0 grams of water. the molal freezing point depression constant (kf) for water is 1.86 ∘c/m.1.23 oc-0.45 oc+0.45 oc-0.23 oc+0.23 oc

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

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.

Which statement best describes the he properties of iconic compounds ?