A student was given a sample of an unknown colourless liquid. He heated the liquid to dryness
in a crucible. No residue was left behind. The
unknown liquid could be
1.a mixture of two or more colourless liquids.
2.a single pure substance.
3.a solution of a gas dissolved in a liquid.
A 1 only
B 1 and 2 only
C 1 and 3 only
D 1, 2 and 3 only
WN​

What is the number of moles in 15.0 g ash3?

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

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.