1.2.1 Use of apparatus and techniques

• Flasks are commonly used for storing and mixing liquids
• What is the purpose of burettes in a titration procedure?

  Dispensing liquids in controlled volumes
• Bunsen burners provide heat for reactions in the lab


  True
• Wearing appropriate PPE protects against cuts, spills, and other hazards
• Match the apparatus with its use:

  Beakers ↔️ Holding and heating liquids

  Flasks ↔️ Storing and mixing liquids

  Pipettes ↔️ Measuring and transferring accurate volumes

  Burettes ↔️ Dispensing liquids in controlled volumes
• When using a graduated cylinder, parallax error can be avoided by reading at the bottom of the meniscus
• What are the two main types of balances used in the lab for mass measurements?

  Mechanical and digital
• Match the heating or cooling technique with its description:

  Bunsen Burner ↔️ Direct heat for reactions

  Water Bath ↔️ Indirect heating by immersion

  Ice Bath ↔️ Rapid cooling with ice water

  Hot Plate ↔️ Heated surface for containers
• Cold water baths use circulating cold water to cool liquids


  True
• What is the primary use of beakers in a chemistry lab?

  Holding and heating liquids
• Pipettes are used to measure and transfer accurate volumes of liquids


  True
• Retort stands are used to support equipment during experiments
• Why is it important to inspect equipment before use?

  Identify cracks or damage
• Steps to follow when handling glassware safely

  1️⃣ Inspect equipment before use

  2️⃣ Wear appropriate PPE

  3️⃣ Handle glassware carefully

  4️⃣ Clean up spills immediately

  5️⃣ Secure equipment properly

  6️⃣ Follow instructions carefully
• Which apparatus is less accurate for measuring volumes: a graduated cylinder or a burette?

  Graduated cylinder
• A white tile can improve visibility when reading a burette


  True
• To ensure accurate mass measurements, a balance should be tared with any container in place
• What factors determine the choice of heating or cooling technique for an experiment?

  Specific requirements of the experiment
• What is the primary use of a Bunsen burner in the laboratory?

  Providing heat for reactions
• Pipettes are designed for measuring and transferring accurate volumes of liquids.


  True
• Why is it important to inspect glassware before use?

  Identify cracks or damage
• Applying excessive force to glassware can cause it to break.


  True
• When using a burette, a white tile improves visibility
• Taring a balance means setting it to zero with any container in place.


  True
• What should you adjust when using a Bunsen burner for heating liquids?

  Flame size and position
• What is a key consideration when using a Bunsen burner for heating?

  Ensure proper ventilation
• What is the purpose of an ice bath in cooling liquids?

  Rapidly cools liquids
• Order the heating and cooling techniques from highest to lowest temperature:

  1️⃣ Bunsen Burner

  2️⃣ Hot Plate

  3️⃣ Water Bath

  4️⃣ Cold Water Bath

  5️⃣ Ice Bath
• Distillation separates liquids based on their different boiling points
• What is the endpoint in a titration procedure?

  Reaction is complete
• The volume of titrant required to reach the endpoint can be used to calculate the concentration of the analyte.


  True
• Beakers are commonly used for holding and heating liquids
• What do burettes measure and dispense in controlled volumes?

  Liquids
• Steps for safe handling of glassware and equipment

  1️⃣ Inspect equipment before use

  2️⃣ Wear appropriate PPE

  3️⃣ Handle glassware carefully

  4️⃣ Clean up spills immediately

  5️⃣ Secure equipment properly

  6️⃣ Follow instructions carefully
• Wearing appropriate PPE protects against cuts, spills, and other hazards
• Which apparatus is less accurate for measuring volume: a graduated cylinder or a burette?

  Graduated cylinder
• What are the two main types of balances used for accurate mass measurements in the lab?

  Mechanical and digital
• Match the balance type with its advantage:

  Mechanical balance ↔️ No power required

  Digital balance ↔️ Highly accurate
• A water bath heats liquids indirectly by immersing containers in heated water
• A hot plate provides a flat, heated surface