A solution of a specific vitamin has λmax = 273 nm and a concentration of 8.33 * 10-7 m. the absorbance of the solution at 273 nm is a = 0.180. what is the molar absorptivity of the vitamin at 273 nm? (sample pathlength = 1.00 cm)

Convert 11.03 moles of calcium nitrate to grams.

If the ph of a buffer solution is equal to the pka of the acid in the buffer then

An atom's configuration based on its number of electrons ends at 3p3. Another atom has nine more electrons. Starting at 3p, what is the remaining configuration? 3p64s23d4 3p34s23d7 3p63d44s2 3p33d74s2

Is frying an egg chemical or physical change

At the moment a liquid becomes a solid, the temperature

A type of rock that undergoes changes because of heat and pressure

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2

What mass of copper is required to replace silver from 4. oog ogre silver nitrate dissolved in water

What kind of bond would two nonmetals typically make?

Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature.