- Created by: Obeid
- Created on: 20-05-12 19:32
How do you make Carboxylic acid?
Alcohol + Oxygen + Carboxylic acid
How do you make Esters?
Alcohol + Carboxylic Acid = Esters
What is sulphuric acid used for?
- Car batteries
Describe what you do in a "titration" experiment?
-Measure alkali using a pipette.
-Measure acid using a burette.
-Put burette over the flask which contains the alkali
-Put white tile or paper underneath the conical flask to see colour change.
Describe what you do in flame tests.
- Get a test wire
-Clean it with dilute hydrochloric acid
-Dip to the saly
-Put it over to a blue flame using a bunsen burner.
What is the flame colour of sodium ?
What is the flame colour of Potassium?
What is the flame colour of Calcium?
What is the flame colour of Copper?
Silver Nitrate + Chloride ions = ?? what precipita
Silver Nitrate + Bromide = What is the colour of p
Cream or Pale Yellow
Silver Nitrate + Iodide = What colour is the preci
What catalyst do you use in the Haber Process?
What catalyst do you use in Contact Proces in maki
Vanadium (V) oxide or Vanadium Pentoxide
What is the test to see if the solution is an acid
Blue litmus paper turns red
Purple litmus paper turns red
What is the test to see if the solution is an alka
Turns red litmus paper blue
Turns purple litmus paper blue
What are the metals called in Group 1 of the Perio
What are the metals called between column 2 and 3
What are the properties of Transition Metals?
High melting and boiling point
Form coloured compounds
What are properties of Alkali Metals?
Soft (can be cut with a sharp knife)
Reacts with water
What are ESTERS used for?
Why is it important not to waste water?
Drinkable water is limited
Without it, can cause droughts
Expensive to desalinate sea water
How do we make soaps?
Esters + Sodium Hydroxide = Soaps
Describe how detergents remove stains.
Hydrophobic part into the grease
Hydrophylic part into the water
Grease globule is dissolved
What are the uses of sulphuric acid?
What is the advantage of soft water?
Produces no scum if mixed with soap
Lathers with soap
Can be used daily for washing etc.
What are advantages of hard water?
It has calcium in it which helps the growth of bones and teeth
What are disadvantages of hard water?
Does not lather
What apparatus is used to measure out "volume" of
What is used to measure the amount of "acid" in ti
What is the meaning of concordant?
Repeatable and accurate.
Name a suitable indicator in titration.
Litmus solution/Litmus Paper
What is a QUALITATIVE inverstigation?
Qualitative investigation is to find "WHICH" substance(s) is/are present.
What is a "QUANTITATIVE" test?
A quantitative test is to find how much of the substance(s) is present.
How do you identify ammonia?
Turns damp red litmus paper blue!
How do you identify a solution which contains Sulp
Add dilute hydrochloric acid and barium chloride to a solution. If it produces a white precipitate, it has sulphate ions.
How do you identify Sulphite Ions S03(2-)
Soak a filter paper in an "ACIDIFIED POTASSIUM DICHROMATE (VI)" . If sulphur dioxide gas is present, the filter paper will turn from orange to green.
What is the RELATIVE FORMULA MASS of H20 (water)?
How do you treat WATER?
Filtration to remove any solid particles
Chlorination to kills bacterias