Question

Wavelength max calculation

Data for determining max: nm %T %T 36 6 5.1 A (calculated) 0,4382 0.1864 (calculated) λ, nm 420 66.9 ./7457 1560 136.9- 38.1 0.41780 65 5.1 02to 1. 1.0268 01 7.9 440 Additional data 480 500 520 540 1.016 43 51o.2 5.3 ,72 b.1,24412 520 2.6 0.496 Information from your plot: 516 Absorbance at λǐna 1,275 x, nm C2. Calculate ε for your compound at rmax. 1275

Answer 1

According to Beer - lambert law, A= $\varepsilon$ cl, c is the concentration of solution and l is the length of the solution light passes through. Therefore $\varepsilon$ =A/(c x l)