1.2.2 Requisite practical activities

• What is the A-Level Chemistry Practical Endorsement designed to assess?

  Practical skills competence
• The "Planning" criterion involves designing procedures and identifying required equipment
• The "Evaluation" criterion involves assessing the reliability and validity of experimental findings.


  True
• The Requisite Practical Activities are the 12 key practical activities that A-Level Chemistry students must complete as part of the Practical Endorsement
• Qualitative analysis involves identifying unknown compounds through specific tests.


  True
• "Distillation" is used to separate the components of a mixture
• The "Measuring energy changes" activity involves measuring the energy changes during chemical reactions.


  True
• Which spectroscopic technique is used to identify organic compounds?

  Spectroscopy
• The Requisite Practical Activities are the 12 key practical activities that A-Level Chemistry students must complete as part of the Practical Endorsement
• The Measurement of rates of reaction activity involves investigating the factors that affect the rate of a chemical reaction
• The A-Level Chemistry Practical Endorsement requires students to demonstrate competence in practical skills across 12 key activities.

  True
• Which practical skill is essential for success in the A-Level Chemistry Practical Endorsement?

  Titration techniques
• How many main categories of essential practical activities are there in the A-Level Chemistry Practical Endorsement?

  Four
• Qualitative analysis involves identifying unknown compounds.


  True
• The preparation of organic compounds involves synthesizing and purifying organic products
• What equipment is used to accurately measure liquid volumes in titrations?

  Pipette and burette
• Qualitative analysis involves performing tests to identify the presence of cations and anions.


  True
• Organic synthesis reactions are carried out to produce target compounds
• Match the category of practical activity with its significance:

  Titration and colorimetry ↔️ Develops skills in quantitative analysis

  Qualitative analysis ↔️ Trains in identifying unknown compounds

  Measurement of rates of reaction ↔️ Teaches students to analyze reaction kinetics

  Preparation of organic compounds ↔️ Develops synthetic and purification skills
• What type of personal protective equipment (PPE) should students wear in the lab?

  Lab coats, goggles, gloves
• Against how many criteria is competence evaluated in the A-Level Chemistry Practical Endorsement?

  Four
• Match the criterion with its description in the A-Level Chemistry Practical Endorsement:

  Planning ↔️ Designing procedures and identifying equipment

  Implementing ↔️ Following protocols accurately and safely

  Analysis ↔️ Interpreting results and understanding data

  Evaluation ↔️ Assessing the reliability of findings
• The "Planning" criterion involves designing procedures and identifying required equipment
• What is the primary purpose of titration in the Practical Endorsement?

  Determine solution concentration
• Preparing organic compounds includes synthesizing and purifying organic products.


  True
• What are the four main categories of essential practical activities in the A-Level Chemistry Practical Endorsement?

  Titration, qualitative analysis, reaction rates, organic preparation
• Qualitative analysis involves performing tests to identify cations and anions.


  True
• Purifying organic products using recrystallization is a key skill
• Pipettes and burettes are essential for accurately measuring liquid volumes
• Wearing a lab coat is part of the appropriate personal protective equipment (PPE).


  True
• What should students be trained on to respond to emergencies in the lab?

  Chemical exposures, fires
• Steps to using a burette for titration

  1️⃣ Fill the burette with the titrant

  2️⃣ Remove air bubbles from the burette tip

  3️⃣ Adjust the initial reading to zero

  4️⃣ Perform the titration by adding titrant dropwise

  5️⃣ Record the final volume reading
• Accurately weighing solid samples is vital for experiments like organic synthesis
• What are some heating devices commonly used in the lab?

  Bunsen burners, hot plates
• Steps in performing an acid-base titration

  1️⃣ Fill the burette with the acid

  2️⃣ Add a measured volume of base to a flask

  3️⃣ Add an indicator to the base

  4️⃣ Titrate until the indicator changes color

  5️⃣ Record the volume of acid used
• Flame tests and precipitation reactions are used in qualitative analysis
• Analyzing data is necessary to determine the order of a reaction and calculate the rate constant.


  True
• What should students do during the planning phase of an experiment?

  Review protocols, identify apparatus
• Match the category of practical activity with its significance:

  Titration and colorimetry ↔️ Quantitative volume measurement

  Qualitative analysis ↔️ Identifying unknown compounds

  Measurement of reaction rates ↔️ Understanding reaction kinetics

  Preparation of organic compounds ↔️ Developing synthetic skills
• Competence in the Practical Endorsement is evaluated against 12 practical activities.


  True