AQA A-Level Chemistry Paper 3 Predicted Paper 2023 questions and answers

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AQA A-Level Chemistry Paper 3 Predicted Paper 2023 Name …………………………………………………………………… Date ………………… 2 hours allowed You shou... ld have access to the AQA insert (periodic table and data sheet) to help with answering the questions. Grade boundaries These are VERY rough guesses! Getting a C on this paper does not guarantee you the same mark in the exam. • A* - 90 • A – 80 • B – 70 • C – 60 • D – 50 • E - 40 SECTION A 01 A sample of hydrated K2SO4 (K2SO4.?H2O) with a mass of 2.458 g was heated to remove all water of crystallisation. The solid remaining had a mass of 1.515 g. (The molar mass of the remaining solid was 174.26 gmol-1) 01.1 Determine a possible formula of the hydrated potassium salt. Your answer must show relevant working. [3 marks] 01.2 Suggest how a student doing this experiment could check that all water had been removed. [Show More]

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