Why isn't TLC typically appropriate for quantitative analyses? because of the design there are no instruments to allow such a measurement because the analyte is absorbed to the TLC stationary phase because the separation is not good enough because the color of the spots interferes with the quantitation because the mass of the analyte is too small

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.