Asolution of a specific vitamin has ? max = 275 nm and a concentration of 2.71 × 10-7 m. the absorbance of the solution at 275 nm is a = 0.150. what is the molar absorptivity of the vitamin at 275 nm? (sample pathlength = 1.00 cm)

For the following, determine the type of reaction and then give products.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided