dyfugikholjp
Badges: 7
Rep:
?
#1
Report Thread starter 4 months ago
#1
A molecule Q is ionised By electron impact in A TOF mass spectrometer the Q+ ion Has a kinetic energy of 2.09 x 10-15 J.This ion takes 1.23 x 10-5 s to reach the detector The length of the flight tube is 1.50 m
Calculate the relative molecular mass of Q
K.E. = 1/2 m v2
Where the mass=mass(kg) and v=speed (m s -1 )
The avagardo constant L =6.022x1023 mol-1
0
reply
dyfugikholjp
Badges: 7
Rep:
?
#2
Report Thread starter 4 months ago
#2
this is iy
Attached files
0
reply
Joinedup
Badges: 20
Rep:
?
#3
Report 4 months ago
#3
what are you confused about? what have you tried?

do you understand how a TOF mass spectrometer works?
can you calculate the mass of the ion in SI units (kg)?
can you convert from kg to grams?
do you understand that 'relative atomic mass' means 'mass expressed in atomic mass units
can you convert between g and amu (using Avogadro's constant)?
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Bournemouth University
    Midwifery Open Day at Portsmouth Campus Undergraduate
    Wed, 16 Oct '19
  • Teesside University
    All faculties open Undergraduate
    Wed, 16 Oct '19
  • University of the Arts London
    London College of Fashion – Cordwainers Footwear and Bags & Accessories Undergraduate
    Wed, 16 Oct '19

How has the start of this academic year been for you?

Loving it - gonna be a great year (130)
18.21%
It's just nice to be back! (194)
27.17%
Not great so far... (256)
35.85%
I want to drop out! (134)
18.77%

Watched Threads

View All