An aqueous solution contains two absorbing species, x and y. when a solution of this mixture is put into a 5.000 cm cell, the total absorbance of a mixture of x and y at 300 nm is 0.372, while at 250 nm it is 0.478. the individual molar absorptivities of x and y are as listed below. what are the individual concentrations of x and y in this mixture? 250 nm 300 nma. x 4.05 x 104 m-1 cm-1 3.22 x 104 m-1 cm-1b. y 3.76 x 104 m-1 cm-1 2.86 x 104 m-1 cm-1

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

lol for the pointsss