Hey! Sign in to get help with your study questionsNew here? Join for free to post

AS: Relative percentage abundance...it is driving me crazy...and hazy...Help...

Announcements Posted on
Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
    • Thread Starter

    Name:  HELP.png
Views: 35
Size:  127.5 KB I do not understand why y is being subtracted from 1.

    I am confused on the entire question now...I am not even sure what formula is being used...
    Please help me...Enlighten me...Save me...
    Thank you in advance.
    • Thread Starter


    ok first y is the percentage abundance of the first isotope right?
    and percentage abundance is usually out of 100% but as a decimal or a regular number 100% would b 1

    so if the total is 1 and there are two abundances and one of them is y the the other is 1-y as the total 1 = y+ the other abundance

    hope this clears is up its really hard to get your head around so read it slowly if you dont get it then tell me so I can try and put it in a simplier way

    Posted from TSR Mobile
Write a reply…


Submit reply


Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. Oops, you need to agree to our Ts&Cs to register
  2. Slide to join now Processing…

Updated: July 20, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

I want...

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.