common laboratory apparatus
Summary
TLDRIn this chemistry lab class, students are introduced to common laboratory apparatus and their uses. The lecture covers items like test tubes, flasks, cylinders, and stands, emphasizing their functions in experiments. The session includes demonstrations of how to use equipment safely and effectively, preparing students for hands-on lab activities.
Takeaways
- 🧪 The class is focused on learning about common laboratory apparatus and their specific uses.
- 🗑️ The tashku is used to contain liquids or chemical reagents for reactions.
- 🔬 The erlenmeyer flask has a flattened bottom and a slightly elevated neck.
- 📏 The graduated cylinder is used for measuring liquids.
- 🥣 The beaker is used for containing and measuring large amounts of liquids.
- 🧴 The ordinary funnel aids in filtration operations.
- 🔭 The watch glass is used for observing substances, either solid or liquid.
- 🔩 The wire gauze (juargos) is used to support vessels or containers during heating.
- 🧷 The iron stand with clamps is used to secure equipment during experiments.
- 🌡️ The thermometer is used to measure the temperature of substances.
- 🧉 The separatory funnel is used to separate immiscible liquids.
Q & A
What is the primary purpose of a tashku in a laboratory setting?
-The tashku is used to contain liquids or chemical reagents for a chemical reaction.
What is unique about the design of an Erlenmeyer flask?
-The Erlenmeyer flask has a flattened bottom and a slightly elevated neck.
How is a graduated cylinder typically used in a lab?
-A graduated cylinder is used to measure liquids.
What is the main function of a beaker in laboratory experiments?
-A beaker is used to contain liquids and also for measuring large amounts of liquids.
What aid does an ordinary funnel provide during filtration operations?
-An ordinary funnel aids in the process of filtration by providing a channel for the liquid to pass through.
What is the primary use of a watch glass in a laboratory?
-A watch glass is used to contain substances, either solids or liquids, for observation.
What is the purpose of a wire gauze in a laboratory setting?
-A wire gauze is used to support vessels or containers when heating.
How does an iron stand assist in laboratory procedures?
-An iron stand supports iron clamps and other equipment, providing stability during various laboratory operations.
What is the specific use of a mortar and pestle in a lab?
-A mortar and pestle are used for grinding purposes to convert larger particles into smaller or finer ones.
What is the role of an evaporating dish in a laboratory?
-An evaporating dish is used to contain liquids that need to be evaporated.
How is a steering rod utilized in a laboratory?
-A steering rod is used for mixing purposes, typically in conjunction with a stirring rod.
What is the primary function of a thermometer in a lab?
-A thermometer is used to determine the temperature of substances.
What is the purpose of a test tube rack?
-A test tube rack is used to safely hold test tubes, especially when they contain substances that need to be heated.
How does a medicine dropper assist in transferring liquids?
-A medicine dropper is used to transfer small amounts of liquids from one vessel to another.
What is the typical use of a test tube holder in a laboratory?
-A test tube holder is used to securely hold a test tube when heating liquids inside it.
What is the purpose of a water trough in laboratory experiments?
-A water trough is used to contain water, especially for experiments that require the water displacement method.
How does a clay triangle support a crucible during heating?
-A clay triangle is used to support a crucible when heating substances inside it, preventing direct contact with the heat source.
What is the specific use of a test tube brush in a lab?
-A test tube brush is used to clean test tubes, but it should not be used with acids as the bristles can melt upon contact.
What is the function of a pipette in a laboratory?
-A pipette is used to measure accurate and exact amounts of liquids.
How is a volumetric flask used in a laboratory?
-A volumetric flask is used to measure exact amounts of liquids, ensuring precise measurements for experiments.
What is the primary function of a separatory funnel?
-A separatory funnel is used to separate two or more immiscible liquids.
How does a distilling flask work in the process of distillation?
-A distilling flask is used to contain the liquid to be distilled. It works together with a condenser where the evaporated gas is condensed back into a liquid.
What is the role of a water bath in laboratory procedures?
-A water bath is used for gentle heating of substances, such as when heating a liquid inside a beaker without direct exposure to a heat source.
What is the purpose of an adapter in conjunction with a condenser?
-An adapter is used with a condenser to collect the distillate, which is the substance resulting from the distillation process.
How does a triple beam balance contribute to a laboratory?
-A triple beam balance is used to measure or determine the mass of an object in a laboratory.
What is the function of a Bunsen burner in a lab?
-A Bunsen burner is used as a heat source in various laboratory procedures, often in conjunction with a fishtail to spread the flame.
What is the purpose of a reagent bottle in a laboratory?
-A reagent bottle is used to contain reagents or chemicals for use in experiments.
Outlines
🧪 Introduction to Common Laboratory Apparatus
The script introduces the audience to the second activity in a chemistry laboratory course. The laboratory assistant, Miss Maurice, is introduced along with other assistants who will help during the laboratory activities. The main focus of the activity is to familiarize students with common laboratory apparatus and their specific uses and functions. Various apparatus are mentioned, including the flask for containing liquids or chemical reagents, the Erlenmeyer flask with its characteristic shape, the graduated cylinder for measuring liquids, the beaker for containing and measuring larger volumes of liquids, the ordinary pan for filtration, the watch glass for observing substances, the wire gauze for supporting vessels during heating, the iron stand with clamps for stability, the iron ring for supporting containers during heating, the mortar and pestle for grinding, the evaporating dish for evaporating liquids, the stirring rod for mixing, and the thermometer for measuring temperature. The script also mentions the test tube rack for safely holding test tubes and the medicine dropper for transferring small amounts of liquids.
🔬 Further Exploration of Laboratory Apparatus
This paragraph continues the exploration of laboratory apparatus, starting with the medicine dropper for transferring small amounts of liquids. The crucible tong is highlighted for holding crucibles during heating, followed by the test tube holder for safely holding test tubes during experiments. The water trough is mentioned for containing water in experiments requiring the water displacement method. The clay triangle is introduced as a support for crucibles during heating, with the clay shield providing additional support. The testing brush is noted for cleaning test tubes, with a caution against using it with acids due to the risk of melting the bristles. The script then describes the pipette for measuring precise amounts of liquids, the volumetric flask for exact liquid measurements, and the cork borer for creating holes in corks. The buret is introduced for measuring exact amounts of liquids, typically used in titration. The separatory funnel is explained for separating immiscible liquids, with an operational demonstration. The fishtail is described as a tool to spread the flame of a Bunsen burner. The script also covers the crucible and copper for chemical reactions that require heating substances inside a crucible without air.
🌡️ Advanced Laboratory Equipment and Techniques
The script delves into more advanced laboratory equipment and techniques. It starts with the distilling flask for containing liquids to be distilled, involving evaporation and condensation processes. The condenser is introduced as a device to condense evaporated gases back into liquids. The water bath is explained for gentle heating of substances, such as heating liquids in a beaker without direct exposure to heat. An adapter is mentioned for use with the condenser to collect the distillate, which is the result of the distillation process. Capillary tubes are highlighted for use in experiments determining the boiling points of oils. The iron stand assembly is described, supporting the iron ring and clamps for various laboratory setups. The triple beam balance is introduced for measuring the mass of objects. The script also mentions the use of a gas pump with a butyl rubber tubing and a clay shield to shield the flame from being blown off by the gas flow. The pipettor is noted for aiding in pipetting substances. Lastly, the reagent bottle is introduced for containing reagents or chemicals.
📝 Conclusion and Assignment Details
The final paragraph concludes the laboratory apparatus introduction and provides details on the assignment. Students are instructed to draw the apparatus and write their functions in their lab guide. The script specifies the submission deadline as Friday, August 28th. The video script is concluded with an introduction of the teacher, Professor Desitas Ruiz, from Holiday University Dreams.
Mindmap
Keywords
💡Erlenmeyer Flask
💡Graduated Cylinder
💡Beaker
💡Watch Glass
💡Iron Stand
💡Mortar and Pestle
💡Evaporating Dish
💡Thermometer
💡Separatory Funnel
💡Burette
💡Crucible
Highlights
Introduction to common laboratory apparatus for chemistry experiments.
Tashku is used to contain liquids or chemical reagents for reactions.
Erlenmeyer flask has a flattened bottom and an elevated neck.
Graduated cylinder is used for measuring liquids.
Beaker is used for containing and measuring large amounts of liquids.
Ordinary funnel aids in filtration operations.
Watch glass is used to contain substances for observation.
Wire gauze supports vessels or containers when heating.
Iron stand with clamps is used for supporting equipment.
Mortar and pestle are used for grinding substances.
Evaporating dish is used to contain liquids for evaporation.
Steering rod is used for mixing purposes.
Thermometer is used to determine the temperature of substances.
Test tube rack is used for safely holding test tubes.
Medicine droppers are used to transfer small amounts of liquids.
Crucible tongs are used to hold crucibles during heating.
Test tube holder is used to hold test tubes during heating.
Water trough is used to contain water for experiments requiring water displacement.
Clay triangle is used to support crucibles during heating.
Testing brush is used to clean test tubes with detergent and water, not acid.
Pipette is used to measure accurate amounts of liquids.
Volumetric flask is used to measure exact amounts of liquids.
Borer is used to create holes in corks.
Buret is used to measure exact amounts of liquids for titration.
Separatory funnel is used to separate immiscible liquids.
Fishtail is used with a Bunsen burner to spread the flame.
Crucible and copper are used for heating substances without air.
Distilling flask is used to contain liquids for distillation.
Condenser is used to condense evaporated gases back into liquids.
Water bath is used for gentle heating of substances.
Adapter is used with a condenser to collect distillate.
Capillary tube is used in experiments determining oil boiling points.
Iron stand assembly supports various laboratory equipment.
Triple beam balance is used to measure the mass of objects.
Gas pump is used to create suction for filtration.
Pipettor aids in pipetting substances.
Reagent bottle is used to contain reagents or chemicals.
Assignment to draw and describe the functions of the laboratory apparatus.
Submission deadline for the lab guide is Friday, August 28th.
Transcripts
hi
welcome back to our class chemistry
100b laboratory
before we are going to introduce to you
these
apparatus for our second activity
may i introduce to you our laboratory
assistance
in the person of miss maurice
hi these ladies will be
helping you during the laboratory
activities when we will have our
face-to-face
classes thank you ladies
today we will perform our second
activity
that is on the common laboratory
apparatus now in this activity
we will be learning what are these
laboratory apparatus which are commonly
used during the experiment
and we will also try to know what are
their
specific uses and functions
so the common laboratory apparatus are
the following
we have first the tashku
[Music]
now this statue is used to contain
liquids
or chemical reagents for a chemical
reaction
then we have the erlenmeyer flask
forgot to look at the erlenmeyer flask
it has
a flattened button
and an elevated a little bit of the neck
then we have the graduated cylinder
this is used to measure liquids
then we have the beaker
okay this is used to contain liquids and
it is also used
for measuring large amount of liquids
we have the ordinary panel this will aid
you
during filtration operation
[Music]
then we have the watch glass this is
used to contain substances
for you to observe be it a solid
or a liquid
then we have the juargos
the wire boss is used to support
vessels or containers when hitting
[Music]
then this is what we call the iron stand
the iron stand supports the iron clamps
so we have here the iron clamps
and we have the buried clamp
because it supports the clamps
so how does this operate you do this way
and then you have to fasten the clamp
tightly onto the iron stand
next we have the iron ring
okay the iron ring supports a container
when heating so this will be
also supported by the iron
stand this is the
mortar and vessel now the mortar and
castle
is used for grinding purposes to convert
larger particles into smaller ones or
finer ones
this is the evaporating dish
[Music]
it is used to contain liquids to be
evaporated
this is the steering rod
the purpose of the steering rod is of
course the steer
for mixing purposes
and this is the thermometer
the thermometer is used to determine
the temperature of substances
then we have the castro brack now the
pesticide is where
you're going to place the test tubes for
safety purposes so for example
if you have these test tubes then when
you're going to place them safely
put them into the test tube
then we have the medicine wrappers
this is used to transfer liquids
small amount of liquids from one vessel
to the other
then we have the crucible tone
the crucible tongue is used to hold
the crucible especially when
you are going to hit the crucible say
for example
you hold the crucible this way
then we have the test job holder
they're going to hold the pestile when
you're going to hit liquids in a test
tube
of course you're going to hold the test
tube with
a testum holder
this is the water drop the water trough
is used to contain water
especially for experiments that needs
water displacement method
then this is the clay triangle
the clay triangle is used to support
the crucible when you are going to hit
something inside the crucible of course
this is supported by
what we call the clay shield
this is the testing brush this is used
to clean the costumes
now when you're going to use a dust shoe
brush in cleaning the costume
do not use this when you're cleaning the
dress tube with an acid
this is only used to clear the test
tubes
when you're cleaning the texture with
detergent
and water not an acid
because the bristles here will be melted
once this will come in contact with the
acid
this is the pipeline
the pipette is used to measure accurate
and exact amount of liquids
then we have the volumetric flask
the volumetric flask is used to measure
exact amount of liquids
then we have the pork bottle
from the name itself pork bottle this is
used to bore holes
through the cork
so how does this operate so
when you're going to bore a hole through
the port the first thing that you're
going to do
is you're going to soften the
pork by pressing it or rolling it
on the table they will tuck then
you wet it with water then roll again
on the table top and once it is softened
you are going to then you are going to
pour the hole through this port using
a cord water so you have already bored a
hole
there this is what we call the buret
the buret also is used to measure
exact amount of liquids
usually this is used for titration
[Music]
purposes
florence mask with a longer neck
and a rounded bubble
this is a separatory funnel the
separatory phantom is used to separate
two or more invisible liquids
okay so how does this operate if you
have already the content
inside the separatory panel you have
only two
turn this valve here in such a way that
the liquid will flow down this tube
then you close the bag
[Music]
this is the fishtail the fishtail
is used together with the bunsen burner
because
this is used to spread the flame of the
passenger
so you place it on top of the barrel of
the bunsen border
[Music]
this is the crucible and copper
now for those chemical reactions wherein
you're going to hit the substance inside
this possible and does not need
the air so you are going to use a
crucible
and hovering
this is a distilling flask
the distillate class is used to contain
the liquid
to be distilled in destination
there are two processes involved the
evaporation
and condensation so into this distilling
class
we are going to place the liquid to the
evaporator
and this work together with
the condenser so
it is it works this way or
it functions this way and into the
condenser this is the condenser
and into the condenser the gas that is
evaporated from the distilling flask
will be condensed back into the liquid
this is what we call the water bath
now gentle heating requires
a water bath when you hit something
like when you are going to hit the
liquid inside the beaker
and you don't want it to be heated
directly so you have
to place this into the
water bottle
so that is the function of the water
bath when gentle heating
is required you place the substance
into a beaker then place it
inside a hot
[Music]
this is what we call an adapter
an adapter works together with the
condenser
so this is to be inserted at the tip of
the condenser
in order to collect the destinate
the destinate is that substance that is
the result of destination
[Music]
then we have the
capillary chew
these are small tubes
in which a substance is allowed to pass
through this capillary
this is used during the experiment on
the determination of the boiling points
of
the oil let's have the
iron stand assembly now
in this assembly this
iron stand supports the iron ring
[Music]
so you place the iron ring here it
is supported by the iron stand
then the iron clamp
this is the iron clamp that is also
supported
by the iron stand and this is what we
call
the flask clamp
this is the flask clamp
so this flask clamp is used to
hold the early measure class
when you are going to hit something in
the early
class and the wire boss supports the
early mayor class
when you're going to hit something
inside the early fire flask
so this is what we call
the iron stand assembly
this is what we call the triple beam
balance
the triple beam balance is used to
measure or determine the mass of
an object
this is the glacial
this is used to support the vessels or
containers
when you are going to eat something so
when you you're going to eat something
you are going to use the butter boiler
that's this rubber tubing into the gas
pump
then place the clay shield
over the russian border this way
shielding
the flame off the constant border from
being blown
off by the grip
this is what you call the pipe before
the pipettor is used
to aid in pipetting a substance
through the paper use it this way
94
then we have the last but nothing is
the reagent buffer the agent bottle is
used to contain
the reagents or the chemicals
so these are the common laboratory
apparatus
that you are going to use during the
experiment
so in your lab guide you are going to
draw this
and write their functions
kindly submit your work on friday
august 28th
[Music]
this is your teacher professor desitas
ruiz
of holiday university dreams
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