Question

was CHE 301 11/15/12 Another sample of KMnO4 solution has 80% of light of a givenpassing through it transmitted when a cell of 1 cm was used for the sample analysis and the molar absorptivity was 2.0 LMol'cm'. The cell length is 1 em not 4 cm as stated previously. (a) Determine the unit of the molar absorptivity (core ora) (b) The concentration"e" of the KMnO, sample in 1 molL and (ii) gl. 2. The wavelength of green light is 400.0 nm. Calculate the following: (a) The frequency (b) The wave number The energy of this argon laser's output What is the frequency of red light having a wavelength of 7000 8? Calculate: (a) The frequency The wave number (c) The energy of this argon laser's output (d) Which light color has the greater energy (e) What is the relationship between wave length and energy?

Answer 1

Sorn @ hiven that to = 1025 lycueith = Icm (E) Molenahrorf bivity = 240 L Mallima! (9) Unit of Molan absorptivity (E) = L Mal'cm Hona (b) As log () - ERC ... log (1-25) = 2.0 Lobar-'x sem xa c=0.049 nel 10.049m Even that Newelugth () 40 - 3x108mis a) frequen s = 875x1014 See' 40X16-м. V=7.5 x10°/45] b> wave no (K) = 211 = 2.744 =16.015 Bom c) Energy (E) = he plank's constant 6.627x10-34 J-SX 7.5x10!4 secoli TE = 4.971X10-197) 9 uronm

3. Cuive Wawelughald ) = Fero a) frequency (0) - Son Sant le Lun 29.8.1959 ." b) Here Now ( ) = 27. 270.-43198810-999 c) Energy (Ejahon = 6+6278103 5.5 X 4.29x105 sec ) [E = 22 85X10-185 a) Ered) Egreen so Red light has greater Energy . es Relaboneliß between Energy I waveleyft. Елин - Қ9-