Notices
Results 1 to 6 of 6

Thread: How make stock solution ?

  1. #1 How make stock solution ? 
    New Member
    Join Date
    Nov 2017
    Posts
    3
    Hi everyone.

    I try to make stock solution but it came to me a little difficult. I want to make MS media without boron. But I have to make stock solution. How can I make stock solution ?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Bullshit Intolerant PhDemon's Avatar
    Join Date
    Feb 2013
    Location
    Newcastle-upon-Tyne, UK
    Posts
    4,585
    You haven't given enough information.

    What concentration do you want your solution to be? What concentration (or solid) are you starting with?

    You might find this page useful: https://www.techknow.org.uk/wiki/ind...king_solutions


    Reply With Quote  
     

  4. #3  
    New Member
    Join Date
    Nov 2017
    Posts
    3
    I want to make 2,4-D solution . How can I solve to 2,4-D ? It is a liquid. I need 1400 mikroliter 2,4-D.
    Reply With Quote  
     

  5. #4  
    Bullshit Intolerant PhDemon's Avatar
    Join Date
    Feb 2013
    Location
    Newcastle-upon-Tyne, UK
    Posts
    4,585
    Do you mean 1400 micromolar concentration?

    If so, first you need to work out the mass of 2,4D needed. To do this you multiply the concentration by the molecular mass:

    1400 X 10-6 x 221.04
    = 0.309 g/L.

    Then you divide this mass by the density of 2,4D to give the volume of 2,4D:

    0.309/1.42 = 0.21 ml.

    So to make a 1400 micromolar solution you need to use 0.21 ml of 2,4D and make it up to 1 L with water.
    Reply With Quote  
     

  6. #5  
    New Member
    Join Date
    Nov 2017
    Posts
    3
    I'm sorry I am new in this cases

    Actually, I want to make solution for 0,2 mg at 200ml distile water
    Reply With Quote  
     

  7. #6  
    Bullshit Intolerant PhDemon's Avatar
    Join Date
    Feb 2013
    Location
    Newcastle-upon-Tyne, UK
    Posts
    4,585
    OK using the density (1.42 g/cm) then 0.2 mg is equivalent to a volume of 0.00014 ml. Dissolve this amount in 200 ml of distilled water.
    Reply With Quote  
     

Similar Threads

  1. Replies: 10
    Last Post: February 13th, 2013, 07:13 AM
  2. Stock markets growth explanation?
    By Stanley514 in forum Business & Economics
    Replies: 6
    Last Post: November 19th, 2011, 09:55 PM
  3. I have found the solution to make poverty history
    By Myuncle in forum Philosophy
    Replies: 16
    Last Post: September 14th, 2010, 10:17 AM
  4. Making a stock solution from non water soluble chemicals
    By backyardgardener in forum Chemistry
    Replies: 7
    Last Post: March 15th, 2009, 07:42 PM
  5. Any stock traders here?
    By Pendragon in forum Business & Economics
    Replies: 12
    Last Post: April 22nd, 2007, 01:29 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •