Chemistry A level

he AQA A-Level Chemistry course (7404, 7405) provides students with a deep understanding of the subject, including the principles of chemistry, and practical and analytical skills. The course covers a broad range of topics which can be applied to everyday life and to further studies in science.


Here is a general overview of the A-Level Chemistry course content:

Assessment for A-Level Chemistry is through three written exams:

The AS Level (7404) covers half the content and has its own separate exams. It does not contribute towards the A-Level (7405) grade.

Please remember that curriculum and assessment methods may have changed after 2021, so it's always good to check with your educational institution or AQA for the most accurate and current details.


The AQA A-Level Chemistry (7404, 7405) is assessed by three written exams taken at the end of the two-year course. Here's a brief overview of each paper:


1. **Paper 1: Physical Chemistry and Inorganic Chemistry**

    - Length: 2 hours

    - Marks: 105 

    - Weighting: 35% of A-Level

    - Content: Questions on relevant physical chemistry topics, inorganic chemistry, and relevant practical skills. 

    - Format: Mixture of short and long answer questions. 


2. **Paper 2: Physical Chemistry and Organic Chemistry**

    - Length: 2 hours

    - Marks: 105 

    - Weighting: 35% of A-Level

    - Content: Questions on relevant physical chemistry topics, organic chemistry, and relevant practical skills.

    - Format: Mixture of short and long answer questions.


3. **Paper 3: Any Content and Any Practical Skills**

    - Length: 2 hours

    - Marks: 90

    - Weighting: 30% of A-Level

    - Content: Questions on any content, including relevant practical skills.

    - Format: 40 marks on practical techniques and data analysis, 20 marks of multiple-choice questions, and 30 marks of synoptic long answer questions.


In addition to the written exams, students are expected to carry out 12 required practical activities throughout the course. Students' competencies in these practicals are assessed by teachers and will contribute to a separate practical endorsement, which doesn't contribute to the A-Level grade but is required by many universities for courses in the chemical sciences. The knowledge and understanding gained during these practical activities could also be examined in the written papers.


Please remember to check the most recent information from the AQA's official website or your educational institution as these details might have changed since my last update.


The practical elements of the AQA A-Level Chemistry (7404, 7405) course are an integral part of the program. As per the course structure at my last update in September 2021, there are 12 required practical activities that students need to complete over the two-year course. These practicals are designed to allow students to develop their experimental skills and understand the link between theory and practice. They cover a range of techniques and concepts.


Here are examples of the types of practical activities students might undertake:


1. **Measurements and their errors:** Precision, accuracy, systematic and random errors, and uncertainties in calculations.


2. **Use of apparatus and techniques:** Techniques such as titration, use of burettes, pipettes, and balances, colorimetry, potentiometric titration, preparing a standard solution, etc.


3. **Inorganic and physical practicals:** These might include investigating the energetics of a reaction, studying rates of reaction, measuring pH and investigating buffers, studying the effect of temperature on equilibrium, etc.


4. **Organic practicals:** Students might perform purifications of organic compounds, carry out qualitative tests for different functional groups, prepare an organic solid and check its purity, carry out simple organic synthesis, etc.


5. **Analytical techniques:** Use of instrumental methods like spectroscopy and chromatography for analyzing and identifying substances.


Although these practical activities do not directly contribute to the A-Level grade, students will receive a separate practical endorsement to certify that they have met the required standard in these skills. Many universities require this practical endorsement for admission to science-related courses. Additionally, the skills and knowledge gained during these practicals can be examined in the written papers.


Remember to check the most recent information from the AQA's official website or your educational institution as these details might have changed since my last update.