Reply
Results 1 to 9 of 9
  1. #1
    Tradie Crew Mr.Roarke's Avatar
    Join Date: Jun 2009
    Location: Canada
    Posts: 8,677
    Rep Power: 35027
    Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000)
    Mr.Roarke is offline

    How can magnesium metal be used to distinguish between an acid and a base?

    Rep to the first person to help

    Thanks

    Reps for life if you answer both

    What color would seawater turn if you added bromothymol blue to it
    Hey gideon! Ive been looking at your wall, its pretty frickin sickening bro.

    Liberalism is cancer.
    Reply With Quote

  2. #2
    DTF Davidthefat's Avatar
    Join Date: Sep 2007
    Location: California, United States
    Posts: 12,619
    Rep Power: 0
    Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500) Davidthefat is not very helpful. (-500)
    Davidthefat is offline
    Reply With Quote

  3. #3
    I am Man Anml.'s Avatar
    Join Date: Sep 2009
    Age: 31
    Posts: 1,026
    Rep Power: 265
    Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50)
    Anml. is offline
    1. the molecular formulas of bases have a metal plus a hydroxide so Mg(OH)2 is a base
    2. acids readily reacts with a base ie: Mg + 2HCl ----> H2Mg Cl2
    Reply With Quote

  4. #4
    I am Man Anml.'s Avatar
    Join Date: Sep 2009
    Age: 31
    Posts: 1,026
    Rep Power: 265
    Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50)
    Anml. is offline
    Seawater has many many substances dissolved into it, such as chlorine, sodium, magnesium, sulfur, calcium, etc. Some of these such as sulfur can form compounds with the water that can affect the pH of the seawater. So in short, you don't know what colour the bromothymol blue will be when it's added to the seawater because who knows the exact composition of the seawater. However if its pH is below 6 (acidic) bromothymol blue will be yellow and if pH is above 7.6 (basic), bromothymol blue will be blue. It'll be green if the pH is in between those two values.
    Reply With Quote

  5. #5
    Tradie Crew Mr.Roarke's Avatar
    Join Date: Jun 2009
    Location: Canada
    Posts: 8,677
    Rep Power: 35027
    Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000)
    Mr.Roarke is offline
    Originally Posted by Blanchoir View Post
    1. the molecular formulas of bases have a metal plus a hydroxide so Mg(OH)2 is a base
    2. acids readily reacts with a base ie: Mg + 2HCl ----> H2Mg Cl2

    How positive are you?

    Originally Posted by Blanchoir View Post
    Seawater has many many substances dissolved into it, such as chlorine, sodium, magnesium, sulfur, calcium, etc. Some of these such as sulfur can form compounds with the water that can affect the pH of the seawater. So in short, you don't know what colour the bromothymol blue will be when it's added to the seawater because who knows the exact composition of the seawater. However if its pH is below 6 (acidic) bromothymol blue will be yellow and if pH is above 7.6 (basic), bromothymol blue will be blue. It'll be green if the pH is in between those two values.
    So what color is it?
    EDIT nvm i put green


    You must spread some Reputation around before giving it to Blanchoir again.
    Hey gideon! Ive been looking at your wall, its pretty frickin sickening bro.

    Liberalism is cancer.
    Reply With Quote

  6. #6
    I am Man Anml.'s Avatar
    Join Date: Sep 2009
    Age: 31
    Posts: 1,026
    Rep Power: 265
    Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50)
    Anml. is offline
    Originally Posted by Mr.Roarke View Post
    How positive are you?
    lol pretty sure man and also i made another post. The seawater one im 10000000% sure of.
    Reply With Quote

  7. #7
    I am Man Anml.'s Avatar
    Join Date: Sep 2009
    Age: 31
    Posts: 1,026
    Rep Power: 265
    Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50) Anml. will become famous soon enough. (+50)
    Anml. is offline
    Originally Posted by Mr.Roarke View Post
    How positive are you?



    So what color is it?
    pH < 6 (acidic) bromothymol blue will be yellow
    pH > 7.6 (basic), bromothymol blue will blue

    if inbetween those values, will be green
    Reply With Quote

  8. #8
    Tradie Crew Mr.Roarke's Avatar
    Join Date: Jun 2009
    Location: Canada
    Posts: 8,677
    Rep Power: 35027
    Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000) Mr.Roarke has much to be proud of. One of the best! (+20000)
    Mr.Roarke is offline
    Originally Posted by Blanchoir View Post
    lol pretty sure man and also i made another post. The seawater one im 10000000% sure of.
    can you make the mg one more simpilar lol
    Hey gideon! Ive been looking at your wall, its pretty frickin sickening bro.

    Liberalism is cancer.
    Reply With Quote

  9. #9
    Registered User Scionix's Avatar
    Join Date: Mar 2008
    Age: 32
    Posts: 106
    Rep Power: 0
    Scionix has no reputation, good or bad yet. (0) Scionix has no reputation, good or bad yet. (0)
    Scionix is offline
    Uhh, it wouldn't be H2Mg because that would be a molecular bond, which are not very strong. If you do HCl + Mg, it would go to MgCl2 + H2.

    The reason you can use magnesium metal to distinguish is the first reason, because it bonds with hydroxide to form a base.
    Reply With Quote

Similar Threads

  1. Replies: 1
    Last Post: 06-04-2008, 01:16 PM

Posting Permissions

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