Triphenylmethanol is insoluble in water, but when it is treated with concentrated H2SO4, a bright yellow solution results. As this yellow solution is diluted with water, its color disappears, and a precipitate of triphenylmethanol reappears. Suggest a structure for the bright yellow species.

In 2002, the rare earth elements mine in mountain pass, california was closed because

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.

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates