00:01
Hello everyone in this question we have been given a solution which is containing 0 .3 to 0 0m milligram per 100 milliliter of compound c so compound c is the substance and mass is given that as 0 .320 gram per 100 mill and also the molar mass molar mass of compound c is 160 gram per mole and transmittance is given, that is percent transmittance is 50 percent.
00:39
Hence, we have to calculate the molar absorptivity of compound c at the wavelength.
00:46
So, let's calculate first of all the molarity of solution.
00:51
Mularity will be equal to number of moles divided by volume in liter.
00:56
So, number of moles will be equal to mass divided by molar mass, given mass divided by molar mass.
01:03
So we can put these values, so we can calculate the molarity.
01:10
So, molarity will be 0 .0003 -2 gram divided by 160 gram per mole and divided by 0 .1 liter.
01:26
Because 100 milliliter, so we have to convert this value into liter.
01:31
So our molarity will come out to be 2 multiply by 10 to the power.
01:35
Minus 5 molar concentration.
01:38
So as we know that absorbance is equal to 2 minus log of person transmittance...