AQA Jun 2014 Paper 1 Q2

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do not write outside the box when heated iron iii nitrate mr is converted into iron iii oxide nitrogen dioxide and oxygen fe no s fe o s no g o g a g sample of iron iii nitrate was completely converted into the products shown a i calculate the amount in moles of iron iii nitrate in the g sample give your answer to significant figures mark a ii calculate the amount in moles of oxygen gas produced in this reaction mark a iii calculate the volume in m of nitrogen dioxide gas at c and kpa produced from g of iron iii nitrate the gas constant is r j k mol if you have been unable to obtain an answer to question a i you may assume the number of moles of iron iii nitrate is this is not the correct answer marks wmp jun chem b suggest a name for this type of reaction that iron iii nitrate undergoes do not write outside the box mark c suggest why the iron iii oxide obtained is pure assume a complete reaction mark turn over for the next question turn over wmp jun chem do not write outside the box a nickel is a metal with a high melting point a i state the block in the periodic table that contains nickel mark a ii explain in terms of its structure and bonding why nickel has a high melting point marks a iii draw a labelled diagram to show the arrangement of particles in a crystal of nickel in your answer include at least six particles of each type marks a iv explain why nickel is ductile can be stretched into wires mark wmp jun chem

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