quiz Lab 1 Flashcards
These substances damage
or pollute the environment.
environmental hazard
involves drawing a liquid into a pipette and allowing liquid to drain from the pipet in a
controlled manner. used to quantitatively transfer exact volumes of a liquid from one container to
another.
pipet
Weighing consists of comparing a quantity or a material with known weight.
Triple Beam Balance
Heat liquid substances over a burner by setting the container on a wire gauze supported on a
Tripod or iron ring
large quantity of liquid for small quantity, use – as
container.
use a flask or a beaker; test tube
technique used to separate a solid from a solution, and the liquid that is separated is
called FILTRATE
Filtration
most useful when the solid is to be discarded and the filtrate is to be kept.
gravity filtration
the change from a liquid state to a vapor phase; it is also a process of removing moisture
from a substance, as by heating, so as to get concentrated product.
evaporation
usually contains
distilled water and provides a convenient
method to wash out test tubes or
pipettes.
wash bottle
it is a porcelain container used to pound or grind solids into powders.
mortar and pestels
a conical flask
with a broad base. The function of a flask
is to hold and store liquids. If graduated,
it can serve to make approximate
measurements of volume. The falsk is
made of specialized glass so it can be
heated and cooled without breaking. A
stopper or cover allows for storage of
liquids.
erlenmeyer flask
is an ironware used to
firmly support set-ups on a stand.
iron clamp
an ironware used to hold test tubes, especially when heating.
test tube holder
an inverted conical apparatus with a tapering tube at the small end. They are usually made of
stainless steel, glass or pl;astics. It is used to channel liquid or fine-grained substances into containers with a
small opening.
funnel
used for supporting
beakers and flask when they are being heated
with a bunsen burner. This is made up of a
metal mesh screen that contains a ceramic
fiber circle in the center that can withstand
extremely high temperatures
wire gauze
it is a solid cylindrical glass used
to agitate liquids for speeding up reactions or
improving mixtures, also used to aid in the
transfer of liquids without spilling.
glass rod
is a cylindrical tube
with a spout and graduation. They are
specifically designed to make accurate liquid
volume measurements.
graduated cylinder