Asample is subjected to uv-vis spectroscopy in a 1 cm cell, and 23.2% of the incident light is transmitted through the sample to the detector. if the molar absorptivity of the analyte in the sample is 450 l/(mol*cm), what is the concentration of the analyte in the sample?

0.001410 mol/L is the concentration of the analyte in the sample.

Explanation:

Using Beer-Lambert's law :

Formula used :

where,

A = absorbance of solution

C = concentration of solution =

l = path length = 1.00 cm

= incident light

= transmitted light

= molar absorptivity coefficient

Here we are given :

Transmittance of light = T = 23.2%

C = 0.001410 mol/L

0.001410 mol/L is the concentration of the analyte in the sample.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west