There is a substance in a solution (0.03 mole/liter). The length of cuvette is 2 cm and only 10% of the certain light beam is transmitted. What is the extinction coefficient of the substance

The molar absorptivity coefficient is, .

Explanation:

Using Beer-Lambert's law :

Formula used :

where,

A = absorbance of solution

C = concentration of solution =

l = path length = 2 cm

= incident light

= transmitted light

= molar absorptivity coefficient = ?

A compound absorb 90 % of the light and transmit 10% of light.

Transmittance = 10% = 0.1

Now put all the given values in the above formula, we get the molar absorptivity coefficient.

Therefore, the molar absorptivity coefficient is, .

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.