LAB Flashcards
Parts of the bunsen burner
- COLLAR
- GAS HOSE
- METAL BASE
- BARREL
- AIR HOLE
It is used to raise the height of the flame for ease of use
BARREL
It is turned to open or close the air hole to obtain the required flame type
COLLAR
It allows the air to enter the burner
AIR HOLE
A wide and heavy base so that the burner is less likely to topple
METAL BASE
It is used to carry the gas from the gas tap
GAS HOSE
The hot part of the flame
THE TIP OF THE DARKER FLAME INSIDE
The cold part of the flame
THE BODY OF THE DARKER FLAME INSIDE
Parts of a flame
- OUTER NONLUMINOUS FLAME
- HOTTEST REGION
- INNER BLUE CONE
Color of barium ions flame test
GREEN
Color of lithium ions flame test
CARMINE RED
Color of potassium ions flame test
PURPLE / LILAC
Color of sodium ions flame test
YELLOW
Color of calcium ions flame test
BRICK RED
Color of arsenic ions flame test
BLUE
Color of iron ions flame test
GOLD
- First described by Sir Humphrey Davy
- They are very lustrous, but oxidizes rapidly
- Most reactive metals
- Valence: 1
ALKALI METALS
Also known as inflammable air
HYDROGEN
The lightest element
HYDROGEN
Three isotopes of hydrogen
- PROTIUM (MOST ABUNDANT)
- DEUTERIUM (HEAVY WATER)
- TRITIUM (RADIOACTIVE ISOTOPE)
Also known as eka-caesium
FRANCIUM
- Extremely rare; <2g in the world
- Radioactive
- Discovered in France
FRANCIUM
Also known or its color is sky blue
CESIUM
- Catalyst in polymerization of resin forming materials
- 1st element viewed under spectrophotometer
CESIUM
Used in fireworks
RUBIDIUM
Also known as earth stone
LITHIUM
Most reactive metal
LITHIUM
Compound used as depressant
LITHIUM BROMIDE (LiBr)
Compound used as drug of choice for mania
LITHIUM CARBONATE (Li2CO3)
Also known as kalium
POTASSIUM
- Predominant intracellular cation
- 8th most abundant in earth’s crust
POTASSIUM
Compounds of potassium and their uses
- KCH3COO (DIURETIC)
- KHCO3 (ANTACID)
- K2CO3 (ANTACID)
- KCL (TREAT HYPOKALEMIA; LETHAL INJ.)
- KOH (SAFONIFYING AGENTIN SOFT SOAP)
- KMnO4 (OXIDIZING AGENT; PERMANGONOMETRY)
- KNO3 (SALITRE; SALT PETER)
Also known as from nature
SODIUM
- Primary extracellular fluid cation
- 4th most abundant element in the earth’s crust
SODIUM
Compounds of sodium and their uses
- NaHCO3 (BAKING SODA; SYSTEMIC ANTACID)
- NaHSO3 (LEUCOGEN; MOST POWERFUL PRESERVATIVE; ANTIOXIDANT)
- NaCL (SEA SALT; TABLE SALT; ROCK SALT; ANTIDOTE FOR ARGYRIA; USED AS AN ELECTROLYTE REPLENISHER LIKE NSS)
- NaF (ANTI-CARIOGENIC 2% IN 4 APPLICATIONS)
- NaOH (CAUSTIC SODA; SOSA; LYE; SAFONIFICATION OF HARD SOAP)
- NaNO3 (CHILE SALT PETER; PERU SALT PETER; PRESERVATIVE)
Meaning of PICO
PHOSPHATE INSIDE, CHLORIDE OUTSIDE
Meaning of MICO
MAGNESIUM INSIDE, CALCIUM OUTSIDE
Meaning of PISO
POTASSIUM INSIDE, SODIUM OUTSIDE
Used in fireworks “crimson red fireworks”
STRONTIUM
Active ingredient in sensodyne
STRONTIUM CHLORIDE (SrCl2)