Achemical equation is shown: al + o2 → al2o3 according to the law of conservation of mass, how many atoms of oxygen exist in the products of this reaction?

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.

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false