Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 22: Q3TY (page 574)

Would the answers be different if m/z 5 500 were an ion with a mass

of 1 000 Da and z 5 2?

Short Answer

Expert verified

No the answer will be same.

Step by step solution

01

the resolved mass difference:

Resolvingpower=m(△m)⇒△m=mresolvingpower=50050000=0.01

For m/z 5 500, two peaks separated by m/z 5 0.01 are resolved.

02

Solving further:

the velocity v of an ion with mass m and charge z after acceleration through a voltage V is v=2zeV/m, where e is the elementary charge, with the charge z=1 is

v=2zeV/mm=2(1)1.602×10-19C5000Da1.661×10-27kg/Da=87.839819km/s

The time to transit 2.000 m is t = distance/velocity =role="math" localid="1663660877051" 8.7839819×104m/s =22.768717 .

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Explain what is meant by spectral, chemical, ionization, andisobaric interference.

Explain what is meant by spectral, chemical, ionization, and isobaric interference.

The molecular ion region in the mass spectrum of a large molecule, such as a protein, consists of a cluster of peaks differing by 1 Da. This pattern occurs because a molecule with many atoms has a high probability of containing one or several atoms of C1315N,18O,2Hand 32S. In fact, the probability of finding a molecule with only C1214N,16O,1Hand 32S may be so small that the nominal molecular ion is not observed. The electrospray mass spectrum of the rat protein interleukin-8 consists of a series of clusters of peaks arising from intact molecular ions with different charge. One cluster has peaks at m/z 1 961.12, 1 961.35, 1 961.63, 1 961.88, 1 962.12 (tallest peak), 1 962.36, 1 962.60, 1 962.87, 1 963.10, 1 963.34, 1 963.59, 1 963.85, and 1 964.09. These peaks correspond to isotopic ions differing by 1 Da. From the observed peak separation, fi nd the charge of the ions in this cluster. From m/z of the tallest peak, estimate the molecular mass of the protein.

32:Why is direct electron ionization in Figure 22-14 permissible for gas chromatography, but only for capillary columns in liquidchromatography in Figure 22-29?

Explain what is meant by spectral, chemical, ionization, and isobaric interference.
See all solutions

Recommended explanations on Chemistry Textbooks

The Earths Atmosphere

Read Explanation

Nuclear Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Inorganic Chemistry

Read Explanation

Physical Chemistry

Read Explanation

Chemical Analysis

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free