6. . From an experiment the absorbance of a 0.30 M Ni' solution was measured to be 0.25 with a 1.00 cm path length cuvette. Calculate the molar absorptivity of this solution using
Beer's Law

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

Which description best characterizes the motion of particles in a solid?

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust