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b) Substances A and B have retention times of 16.50 and 18.20 minutes, respectively, on a 30 cm column. An unretained species passes through the column in 1.30 minutes. The peak widths (at base) for A and B are 1.21 and 1.32 minutes, respectively. (6 marks) Calculate i) the time spent by A and B on the column ii) column resolution average number of plates in the column iv) the plate height v) the length of the column required to achieve a resolution of 1.50 R, 2[te). -(tx)] W,+W N = 16 H L N (Rs), = N, (Rs) = N, , w Reflection is an important part of professional practice. After your experiential visit you were asked to use the Gibbs model of reflection. Using paragraphs and sentences explain how using this model to reflect on experiences contributes to learning and can improve professional practice. Include the names of at least 3 of the model components in your answer. Marking rubric O marks 1-2 mark Jumbled Limited response explanation that does with 1 not relate component to the accurately included topic 3-4 marks 5-6 marks 7-8 marks 9-10 marks Explanation Explanation Explanation Clear shows limited show some show some explanation understanding understanding understanding that shows of the role of of the role of of the role of good reflection. At reflection. At reflection. At understanding least 2 least 2 least 3 of the role of components components components reflection and included. included. included. includes 3 components of the model. 2 rks 3 marks 4 marks 5 marks At least one More than one Sentences Story flows well paragraph paragraph. flow well. and has an and sentences English in the Most content introduction sentences can relates to the and a be followed topic. conclusion. All content relates to the topic. O marks No sentences used 1 mark A few sentences. No paragraphs Dot points Reflection is an important part of professional practice. After your experiential visit you were asked to use the Gibbs model of reflection. Using paragraphs and sentences explain how using this model to reflect on experiences contributes to learning and can improve professional practice. Include the names of at least 3 of the model components in your answer. Marking rubric O marks 1-2 mark Jumbled Limited response explanation that does with 1 not relate component to the accurately included topic 3-4 marks 5-6 marks 7-8 marks 9-10 marks Explanation Explanation Explanation Clear shows limited show some show some explanation understanding understanding understanding that shows of the role of of the role of of the role of good reflection. At reflection. At reflection. At understanding least 2 least 2 least 3 of the role of components components components reflection and included. included. included. includes 3 components of the model. 2 marks 3 marks 4 marks 5 marks At least one More than one Sentences Story flows well paragraph paragraph. flow well. and has an and sentences English in the Most content introduction sentences can relates to the and a be followed topic. conclusion. All content relates to the topic. O marks 1 mark A few sentences. No sentences used No paragraphs Dot points