Turn on thread page Beta
    • Thread Starter
    Offline

    1
    ReputationRep:
    here we go...
    Making a double salt questions help?
    We had to make a double salt involving ammonia, sulfuric acid and iron fillings.

    Would just like some help on a few questions please,

    1) Why is it important to add the iron filings to the sulfuric acid in small portions (to make iron (II) sulfate)?

    2) How does the procedure make sure that the sulfuric acid is in excess?

    3) How do you know that the ammonia (to make ammonium sulfate) has been added in excess?

    4) Why will the percentage yield not be 100%. (As to this question I know the answer, basically that some will be dropped/spilt etc. But how do I phrase this for the marks)

    5) What would my crystals look like? (Again, I know the answer but it's the phrasing I need to get right. I think I have to say hexagonal or something like this)

    Thanks for any help
    Credit goes to GC93.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 31, 2011
The home of Results and Clearing

1,017

people online now

1,567,000

students helped last year

University open days

  1. Sheffield Hallam University
    City Campus Undergraduate
    Tue, 21 Aug '18
  2. Bournemouth University
    Clearing Open Day Undergraduate
    Wed, 22 Aug '18
  3. University of Buckingham
    Postgraduate Open Evening Postgraduate
    Thu, 23 Aug '18
Poll
A-level students - how do you feel about your results?

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

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