Use the W, of 0.121min from the chromatogram above to find the plate height for benzene. a) 0.493 mm b) 0.455mm C) 0.934mm d) 0.439 e) Insufficient information provided N - 5.55…

Question

asked Dec 23, 2020 114k views

1 Answer

Paul Hawke · Answer 1 · 2020-12-30T02:59:04+0000

Answer:

The plate height for benzene is 0.455mm

Step-by-step explanation:

$N=5.54\left(\frac{t r}{w_{(1)/(2)}}\right)^(2)$

N=(L)/(H)

H=(L)/(N)

Where, N = theoretical plate

t_r = retention time

$w_{((1)/(2))}$ = Half of the width of the peak at it’s base

L = length of the column

H = Plate height

Since, there is no attached chromatogram so it can’t evaluate the value of
t_r and
$w_{((1)/(2))}$

Putting the values in the above mentioned formulae

Hence, N = 66049.5

H =
(L)/(N)

=
(L)/(66049.5 )

= 0.45mm

Hence, the plate height of benzene is 0.455mm