"EXPERIMENTAL CHEMISTRY"
WHAT IS CHEMISTRY?
CHEMISTRY IS A SCIENCE WHICH INVOLVES THE MEASUREMENTS OF VARIOUS QUANTITIES.
MASS:>
IT IS THE AMOUNT OF MATTER A SUBSTANCE CONTAINS.
APPARATUS:
BEAM BALANCE - WEIGHT IS MOVED ALONG THE HORIZONTAL SCALE UNTIL IT BALANCES THE MASS OF
OBJECT ON THE SCALE PAN.
ELECTRONIC BALANCE -0.01g OR 0.001g ACCURATE
UNITS:
1000mg=1g
1000g=1kg
1000kg=1 tonne
VOLUME:>
IT IS THE AMOUNT OF SPACE A SUBSTANCE OCCUPIES.
APPARATUS:
MEASURING CYLINDER-ACCURATE TO NEAREST CM3.
BEAKER-ACCURATE TO NEAREST CM3.
BURETTE-ACCURATE TO NEAREST 0.1g.
PIPETTE-CAN MEAUSURE VOLUME OF 25CM3,50CM3, 10CM3.
VOLUMETRIC FLASK-CAN MEASURE VOLUME OF 100CM3,250CM3,1 DM3 WHEN MAKING SOLUTIONS
OF KNOWN CONCENTRATION.
PLASTIC SYRINGES- MEASURE SMALL VOLUMES OF LIQUID.
GAS SYRINGES- MADE UP OF GLASS, LARGE VOLUMES OF GASES.
UNITS:
1000CM3=1 DM3= 1LITRE
1000DM3= 1 M3
"TIME"
WHAT IS CHEMISTRY?
CHEMISTRY IS A SCIENCE WHICH INVOLVES THE MEASUREMENTS OF VARIOUS QUANTITIES.
MASS:>
IT IS THE AMOUNT OF MATTER A SUBSTANCE CONTAINS.
APPARATUS:
BEAM BALANCE - WEIGHT IS MOVED ALONG THE HORIZONTAL SCALE UNTIL IT BALANCES THE MASS OF
OBJECT ON THE SCALE PAN.
ELECTRONIC BALANCE -0.01g OR 0.001g ACCURATE
UNITS:
1000mg=1g
1000g=1kg
1000kg=1 tonne
VOLUME:>
IT IS THE AMOUNT OF SPACE A SUBSTANCE OCCUPIES.
APPARATUS:
MEASURING CYLINDER-ACCURATE TO NEAREST CM3.
BEAKER-ACCURATE TO NEAREST CM3.
BURETTE-ACCURATE TO NEAREST 0.1g.
PIPETTE-CAN MEAUSURE VOLUME OF 25CM3,50CM3, 10CM3.
VOLUMETRIC FLASK-CAN MEASURE VOLUME OF 100CM3,250CM3,1 DM3 WHEN MAKING SOLUTIONS
OF KNOWN CONCENTRATION.
PLASTIC SYRINGES- MEASURE SMALL VOLUMES OF LIQUID.
GAS SYRINGES- MADE UP OF GLASS, LARGE VOLUMES OF GASES.
UNITS:
1000CM3=1 DM3= 1LITRE
1000DM3= 1 M3
"TIME"
