Bug
,
Tuesday, 10th of August 2010 12:12:18 PM
Identifying Unknown Solutions
l will be provided
Bug
with the following solutions labelled with a letter only: (0.1 mol/L
Registered User
Aluminium nitrate, 0.1 mol/L HCl, 0.1 mol/L Sulphuric acid, 0.1 mol/L Zinc
Joined: Saturday, 15th of May 2010, 12:07:43
nitrate, 0.1 mol/L Lead nitrate and 0.1 mol/L Sodium iodide, ethanol and
Posts: 1710
propanone.
The chemicals and materials available to use will
Viewed 17059 times
be:
0.1 mol/L NaOH, 0.1 mol/L HCl, 0.1 mol/L AgNO3, 0.1 mol/L BaCl2,
Acidified 0.1 mol/L K2Cr2O7 and 2 mol/L Ammonium hydroxide (ammonia)
solution.
Universal indicator, Red litmus paper, Tweezers,
Test tubes, Distilled water, Matches, Wax taper, Depression plate, ph
Colour chart and Blue litmus paper. You may not need all of these
solutions.
Anyone have any idea what l should do?
Lippy
,
Wednesday, 11th of August 2010 05:29:02 PM
I would start by listing the physical & chemical properties of
Lippy
the unknown chemicals i.e. mp, bp, pH, polarity, ppt formation, redox
Registered User
potential. I would also do this for the chemicals available for use.
Joined: Tuesday, 11th of May 2010, 00:03:05
Think about what rxn is you have been taught, & write it out. Basically
Posts: 299
look to see if you have a + b = c. You could use process of elimination if
Viewed 3046 times
you know ur rxn's. With just quickly glancing at ur known materials, I see
2 oxidizers, bases & acids. This should at least give a starting point.
Biscuit
,
Thursday, 12th of August 2010 01:35:18 AM
solution are usually clear and light can shine through. another
Biscuit
way to test is to let it settle for a while. if it is a solution, there
Registered User
would not be any things left at the bottom of the mixture.
Joined: Saturday, 5th of June 2010, 01:53:05
Posts: 149
Viewed 2813 times