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Questions and Answers
What is the purpose of a mortar and pestle in a laboratory?
What is the purpose of a mortar and pestle in a laboratory?
- To separate the layers of a mixture of two immiscible liquids of different densities
- To deliver accurate volumes of liquids
- To measure temperature
- To pound solid substances (correct)
What is the function of a pipette in a laboratory setting?
What is the function of a pipette in a laboratory setting?
- To pound solid substances
- To measure temperature
- To deliver accurate volumes of liquids (correct)
- To separate the layers of a mixture of two immiscible liquids of different densities
What is the purpose of a separatory funnel in the laboratory?
What is the purpose of a separatory funnel in the laboratory?
- To mix solids; to scoop small solids
- To separate the layers of a mixture of two immiscible liquids of different densities (correct)
- To measure the mass of a substance
- To mix liquids
What is the purpose of a watch glass in a laboratory?
What is the purpose of a watch glass in a laboratory?
What is the function of a wire gauze in a laboratory setting?
What is the function of a wire gauze in a laboratory setting?
Flashcards
Mortar and Pestle
Mortar and Pestle
Used to pound solid substances into a powder or paste.
Pipette
Pipette
Used to deliver accurate volumes of liquids.
Separatory Funnel
Separatory Funnel
Used to separate immiscible liquids based on their densities.
Watch Glass
Watch Glass
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Wire Gauze
Wire Gauze
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Study Notes
Laboratory Apparatus
- An alcohol lamp is used to supply a small amount of heat in laboratory experiments.
- A beaker is a versatile vessel used to mix and pour liquids.
- A Bunsen burner is a heat source that provides a large amount of heat in laboratory experiments.
- A burette is a precision instrument used to deliver a measured volume of a liquid to another vessel.
- A clay triangle is a support device placed over a tripod or iron ring to provide stability for porcelain ware during direct heating at very high temperatures.
- An evaporating dish is used to evaporate a large amount of liquid through direct heating.
- An Erlenmeyer flask is used to mix a large amount of liquid and to pour liquids through small openings.
Specialized Flasks
- A Florence flask is used to boil liquids and can also be used to collect gases, if applicable.
- Florence flasks come in various sizes to accommodate different experimental needs.
- A volumetric flask is used to prepare precise standard solutions.
- Volumetric flasks are designed to measure only one specific volume, making them highly precise instruments.
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