functions of flask laboratory apparatus
1. functions of flask laboratory apparatus
He developed a flask that has a flat bottom with a tapered neck. The mouth, or opening, is used for pouring solutions and may be closed with a stopper in order to store samples. These flasksare useful for mixing solutions for chemical reactions, or can be used for drying and vacuuming chemical product to remove water.
2. The importance of using volumetric flask. (own words)(How to use a volumetric flask)
Answer:
when it is necessary to know both precisely and accurately the volume of the solution that is being prepared.
Fill the flask with distilled water to about half. Swirl the flask to dissolve and mix the contents thoroughly. Top up the flask with distilled water to just below the ring mark. Top up the remaining volume, using a wash bottle or pipette, until the meniscus is exactly at the ring mark.
3. 9. It is a laboratory equipment which is used to measure the acidity oralkalinity of a solution.A. Graduated Cylinder C. pH MeterB. Florence FlaskD. Volumetric Flask
Answer:
A. Graduated Cylinder
im not sure
Answer:
C. PH meter
Explanation:
Sana po tama po ako
4. What are the laboratory apparatus?
graduated cylinder, beaker, temperature, beam balance, spatula, bunsen burner, clay triangle, crucible tong, test tubes, test tube rack, iron stand, iron ring, pipette, stirring rod, mask, goggles, perspirator, dropper, wire gauze, glass watch, mortar and pistle,
5. An instrument helpful when transferring the solid into the slim neck of the volumetric flask without spilling. *test tubebeakererlenmeyer flaskfunnel
Answer:
funnel po ung sagot o kaya test tube
6. Mga kagamitan sa LAboratory o Laboratory Apparatus
Wire Gauze
Alcohol Burner
Test Tube
Graduated Cylinder
Tri-Pod
7. does weighing paper volumetric flask funnel and small container can be found at home
Answer:
yes a small container can be found at home ih
8. When conducting a laboratory analysis, how should you clean up the laboratory glass water like, buret, volumetric flask, and pipet to ensure that it is clean ?
Clean pipets and volumetric flasks using warm soapy water. The glassware may require scrubbing with a brush. Rinse with tap water followed by 3-4 rinses with deionized water.
9. 18. Used to make up solutions of fixed volume a. beakers b. volumetric flask C. pipette
Answer:
B. VOLUMETRIC FLASK
Explanation:
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10. what is the description and uses of volumetric flask
Answer:
A volumetric flask is lab glass or plasticware used to prepare a solution. It is used to make up a solution to a known volume. Volumetric flasks are used to measure volumes much more precisely than beakers or Erlenmeyer flasks.
11. Draw 20 laboratory apparatus, write their names and functions.
Answer:
Explanation:
Example attached below.
12. what is laboratory apparatus
It is the things used in a laboratory
13. what is the meaning of volumetric flask
A piece of a laboratory glassware, calibrated to contain a precise volume at a particular temp.
14. what are the laboratory apparatus?
Answer:
Laboratory apparatus are the tools required to complete lab work, including test tubes, pipettes, beakers, and graduated cylinders.
Answer:
beaker
Used to hold and heat liquids. Multipurpose and essential in the lab.
brushes
Used to easily clean the inside of a test tubes and other glassware.
Buchner funnel
Used with vacuum flask for performing vacuum filtration.
Bunsen burner
Used for heating and exposing items to flame.
burette
Used in titrations to measure precisely how much liquid has been delivered.
burette clamp
Used to hold burettes on a ring stand.
clay triangle
Used to hold crucibles when they are being heated. They usually sit on a ring stand.
crucible with lid
Used to heat small quantities to very high temperatures.
crucible tong
Used to hold crucibles and evaporating dishes when they are hot.
disposable pipette
Used for moving small amounts of liquid from place to place. They are usually made of plastic and are disposable
electronic balance
Used for weighing substances or objects, usually in grams.
erlenmeyer flasks
Used to heat, mix, and store liquids. The advantage to the Erlenmeyer Flask is that the bottom is wider than the top so it will heat quicker because of the greater surface area exposed to the heat.
evaporating dish
Used to recover dissolved solids by evaporation.
florence flask
Used for heating substances that need to be heated evenly. The bulbed bottom allows the heat to distribute through the liquid more evenly. The Florence Flask is mostly used in distillation experiments.
forceps
Used for picking up and moving small objects.
glass funnel
Used to pour liquids into any container so they will not be lost or spilled. They are also used with folded filter paper for filtration.
glass stir rod
Used to stir liquids. They are usually made of glass.
graduated cylinder
Used to measure the volumes of liquids.
hot plate
Used for heating substances and liquids in beakers and flasks.
Meker Burner
Used for heating and exposing items to flame.
micropipette
Used for accurately measuring and delivering very small volumes of liquid-usually 1 mL or less.
mortar and pestle
Used to crush solids into powders for experiments, usually to better dissolve the solids.
pipette with pump
Used for accurately measuring and delivering small volumes of liquid-usually 0.1-10 mL.
ring clamp
Attached to ring stand and with wire gauze used to hold beakers or flasks while they are heated by a gas burner.
ring stand
Used to hold items being heated. Clamps or rings can be used so that items may be placed above the lab table for heating by Bunsen burners or other items.
rubber stopper
Stoppers come in many different sizes. The sizes are from 0 to 8. Stoppers can have holes for thermometers and for other probes that may be used.
scoopula
For scooping out small or large amounts of chemicals from bottles, etc.
separatory funnel
For separating layers of immiscible liquids or for dropping liquids.
spatula
Used for moving small amounts of solid from place to place.
striker
Used to light a gas burner.
test tube
Used for storing, mixing, and heating small amounts of chemicals.
test tube holder
Used to hold test tubes while heating.
test tube rack
Used to hold test tubes while reactions happen in them or while they are not needed.
thermometer
Used to take temperature of solids, liquids, and gases.
utility clamp
Used to attach test tubes and other glassware to ring stand.
vacuum filter flask
Used with vacuum line and Buchner funnel for vacuum filtration.
volumetric flask
Used to measure one specific volume in mixing accurate solutions.
wash bottle
Used to wash or rinse other containers
watch glass
Used to hold solids when being weighed or transported. They should never be heated. Can also be used to cover beakers or other containers.
weigh boat
Used for weighing solids on a balance.
wing top
For obtaining broad, fishtail flame that heats large area and smoothly bends glass.
wire gauze
Used with a ring clamp to support glassware over a Bunsen burner. Spreads flame out for more even heating.
15. all laboratory apparatus
Beaker,test tube,stirring rod,Test tube rack,stand and clamp,bunsen burner,tongs,wire gauze,test tube holder,tripod,funnel,graduated cylinder,erlen meyer,thermometer,dropper,evaporating dish,crucible,scoopula
16. uses of laboratory apparatus
Answer:
iiiii-dolo
Explanation:
sorry need ko
17. laboratory apparatus drawing
if you want to know how a plant grow it takes water air and sunlight and make cellulose
18. 10 laboratory apparatus
1. Erlenmeyer flasks
2. Florence flasks
3. Test tubes
4. Crucibles
5. Funnel
6. Beakers
7. Graduated Cylinder
8. Crucible Tongs
9. Erlenmeyer Flasks
10. Test Tube Holder
19. define volumetric flask and distillating flask....pls answer it....tnx :)
The Distilling Flask-means used as a container of the solution to be distilled in the distillation process.
The Volumetric Flask-used for measuring large quantity of volatile liquid,used for storing volatile liquid.
20. Research and draw laboratory apparatus and write it's definition.
Answer:
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21. Meaning of Laboratory Apparatus
For other uses, see Lab (disambiguation) and Laboratory (disambiguation).
A medical laboratory run by the Graduate Institute of Cancer Biology of China Medical University (Taiwan)
Molecular Biology Technics Laboratory at Faculty of Biology of Adam Mickiewicz University in Poznan
A workbench in a chemistry laboratory
The Schuster Laboratory, University of Manchester is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed.
22. What laboratory apparatus can be used in executing the decantation technique of separating the components of mixtures? a. Distilling flask b. Burette c. Separatory funnel d. Condenser
C.Separatory funnel thanks
23. QUESTION 13 Maria wants to know the mass of her science laboratory module, what laboratory apparatus should she use? a. Thermometer b. Platform balance c. Graduated cylinder d. Flask
Answer:
B.
Explanation:
A platform balance, also known as a platform scale, is a type of weighing apparatus used to measure the weight or mass of an object. It consists of a flat platform or surface where the object is placed and a measuring device, typically a spring or a strain gauge, that measures the amount of force applied to the platform. The measuring device is connected to a display that shows the weight of the object.
Platform balances can come in various sizes, with larger ones often used in industries and smaller ones used in laboratories or homes. They can be manually operated or have digital displays, and some models can be connected to a computer or other device for data collection and analysis.
Platform balances are commonly used for a wide range of applications, including weighing materials for production, measuring ingredients in recipes, and weighing items for shipping or mailing. They are a reliable and accurate way to measure the weight or mass of an object, and they are an essential tool for many businesses, laboratories, and individuals.
24. A series of dilute NaCl solutions is prepared, starting with an initial stock solution of 0.100 M NaCl. Solution A is prepared by pipetting 10 mL of the stock solution into a 250-mL volumetric flask and diluting to volume. Solution B is prepared by pipetting 25 mL of solution A into a 100-mL volumetric flask and diluting to volume. Solution C is prepared by pipetting 20 mL of solution B into a 500-mL volumetric flask and diluting to volume. What is the molar concentration of NaCl in solutions A, B, and C?
SOLUTION:For Solution A
Step 1: List the given values.
[tex]\begin{aligned} & M_{\text{i}} = 0.100 \: M \\ & V_{\text{i}} = \text{10 mL} \\ & V_{\text{f}} = \text{250 mL} \end{aligned}[/tex]
Step 2: Calculate the molar concentration of Solution A.
[tex]\begin{aligned} M_{\text{f}} & = \frac{M_{\text{i}}V_{\text{i}}}{V_{\text{f}}} \\ & = \frac{(0.100 \: M)(\text{10 mL})}{\text{250 mL}} \\ & = \boxed{4.00 \times 10^{-3} \: M} \end{aligned}[/tex]
Hence, the molar concentration of Solution A is 4.00 × 10⁻³ M.
For Solution BStep 1: List the given values.
[tex]\begin{aligned} & M_{\text{i}} = 4.00 \times 10^{-3} \: M \\ & V_{\text{i}} = \text{25 mL} \\ & V_{\text{f}} = \text{100 mL} \end{aligned}[/tex]
Step 2: Calculate the molar concentration of Solution B.
[tex]\begin{aligned} M_{\text{f}} & = \frac{M_{\text{i}}V_{\text{i}}}{V_{\text{f}}} \\ & = \frac{(4 \times 10^{-3} \: M)(\text{25 mL})}{\text{100 mL}} \\ & = \boxed{1.00 \times 10^{-3} \: M} \end{aligned}[/tex]
Hence, the molar concentration of Solution B is 1.00 × 10⁻³ M.
For Solution CStep 1: List the given values.
[tex]\begin{aligned} & M_{\text{i}} = 1.00 \times 10^{-3} \: M \\ & V_{\text{i}} = \text{20 mL} \\ & V_{\text{f}} = \text{500 mL} \end{aligned}[/tex]
Step 2: Calculate the molar concentration of Solution C.
[tex]\begin{aligned} M_{\text{f}} & = \frac{M_{\text{i}}V_{\text{i}}}{V_{\text{f}}} \\ & = \frac{(1.00 \times 10^{-3} \: M)(\text{20 mL})}{\text{500 mL}} \\ & = \boxed{4.00 \times 10^{-5} \: M} \end{aligned}[/tex]
Hence, the molar concentration of Solution C is 4.00 × 10⁻⁵ M.
[tex]\\[/tex]
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25. what are the laboratory apparatus?
cylinder, petri dish. test tubes, wiregauze, tripod, stirring rod, beaker, tong, clampthe laboratory apparatus is flatform beam balance,microscope,u-tubes,bunsen burners,test tube rack,cylinder glass,centifuge tubes,separatory funnels
26. When is it preferable to use a plastic volumetric flask instead of a glass flask?
Answer:
Typically plastic volumetric flasks are used when performing trace analysis and analyses may be absorbed OR desorbed from the glass.
27. the solid solute is weighed out on weighing paper or in a small contauner and then transferred directly to a volumetric flask commonly called a vol flask
Answer:
volcanic activities
Explanation:
fine volcano
28. Apparatus used in microbiology laboratory
microscope is one of the apparatus that we an uce
29. The importance of the laboratory apparatus
The Importance of Laboratory Apparatus
Laboratory apparatus is important because, without them, working in a laboratory is impossible. Many laboratory apparatus are used to conduct experiments, quality controls, chemical reactions, proving theories, and checking various substances. In addition to these, the importance of laboratory apparatus lies in the uses of each apparatus or material. There are many laboratory apparatus used in a laboratory. They are specifically made to withstand and hold a variety of experiments and such.
Examples of Laboratory Apparatus and Their UsesHere are five examples of apparatuses used in a laboratory setting:
Safety goggles, gloves, and laboratory gowns - used to cover the different and sensitive parts of the body and prevent injuryRing stand - hold glassware and other equipment while workingBeaker, flasks, and test tubes - for containing, heating, and mixing liquidsTongs and clamps - used to hold containers and test tubesTest tube rack - for holding test tubes especially when they have contentsRead more information about laboratory apparatus here: https://brainly.ph/question/142735
30. what is the meaning of volumetric flask
A volumetric flask (measuring flask or graduated flask) is a piece of laboratory glassware, a type of laboratory flask, calibrated to contain a precise volume at a particular temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions.Volumetric flask is a glassware used in laboratories. It has flat base and long neck and used in preparing solutions.
