HIGHER CHEMISTRY - Oxidation - Education Scotland
HIGHER CHEMISTRY - Oxidation - Education Scotland
HIGHER CHEMISTRY - Oxidation - Education Scotland
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>HIGHER</strong><br />
<strong>CHEMISTRY</strong><br />
Reagents<br />
compound X (~ 1 cm 3 )<br />
(propanal)<br />
compound Y (~ 1 cm 3 )<br />
(propanone)<br />
- <strong>Oxidation</strong> -<br />
- TEACHER/LECTURER/TECHNICIAN SHEET -<br />
Requirements per student (or group)<br />
0.1 mol l -1 potassium dichromate (~ 2 cm 3 )<br />
(29.4 g potassium dichromate per litre)<br />
1 mol l -1 sulphuric acid (~ 4 cm 3 )<br />
(55 cm 3 concentrated sulphuric acid per litre)<br />
Benedict's solution (~ 6 cm 3 )<br />
TOLLENS' REAGENT (~ 6 CM 3 )<br />
(Tollens' reagent must be prepared just prior<br />
to its use.<br />
To 5 cm 3 of 0.05 mol l -1 silver nitrate add<br />
about 5 drops of 2 mol l -1 sodium hydroxide.<br />
Then add 2 mol l -1 ammonia solution drop by<br />
drop until the precipitate just dissolves)<br />
APPARATUS<br />
test tubes (6)<br />
test tube rack (1)<br />
test tube holder (1)<br />
Bunsen burner(1)<br />
heating mat (1)<br />
tripod (1)<br />
400 cm 3 glass beaker (1)<br />
compound X<br />
propanal<br />
compound Y<br />
propanone<br />
irritant<br />
0.1 mol l -1 potassium dichromate<br />
potassium dichromate<br />
1 mol l -1 sulphuric acid<br />
concentrated sulphuric<br />
acid<br />
UNIT 2<br />
PPA 1<br />
highly<br />
flammable<br />
highly<br />
flammable<br />
toxic<br />
irritant<br />
corrosive<br />
Benedict's<br />
solution harmful<br />
Tollens' reagent<br />
2 mol l -1 sodium hydroxide<br />
explosive<br />
corrosive
Change language