Lab Flashcards
Two substances used for charring
egg albumin
sugar
Two substances used for non-charring
Naphthalene
ethyl alcohol
The black substance formed after heating sugar
Carbon
What was deposited at the side of the test tube when egg albumin was heated?
moisture
The end product for the test of sulfur
PbS
color of end product of sulfur
black precipitate
The gas evolved after heating egg albumin and soda lime
ammonia NH3
Two acids used for the test of Phosphorus
HNO3
H2SO4
The end product for the test of phosphorus
ammonium phosphate
(NH4)3PO4
Color of the end product of test for phosphorus
yellow precipitate
Two halogens used for the test of halogens
Cl
I
The process involved when naphthalene was heated
sublimation
The process involved when ethyl alcohol was heated
evaporation
Color of the flame for the test of halogens
green
Two products formed for complete combustion
CO2
H2O
Composition of organic compounds
CHON halogens
The reaction of the red litmus paper when egg albumin and soda lime was heated
red turned blue
substances used in test for nitrogen
egg albumin
soda lime
substances used in sulfur test
egg albumin
NaOH
Lead Acetate
Two substances used in flammability test
ethyl alcohol
NaOH
Two solutes used in solubility test
Naphthalene
NaCl
Two solvents used in solubility test
ether
H2O
Two products formed in complete combustion of ethyl alcohol
CO2
H2O
Chemical formula of ethyl alcohol
C2H5OH
Chemical formula of Naphthalene
C10H8
Properties of Methane
colorless, odorless, tasteless gas lighter than air non polar non-toxic flammable
MP of Methane
-182.5 degrees celsius
shape of Methane
tetrahedral
is a product of decomposition of organic matter and of the carbonization of coal
Methane
used as a fuel and a starting material in chemical synthesis
Methane
simplest alkane
Methane
greenhouse gas associated with global warming
Methane