3 Required practical 11: Identify transition metal ions

 

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Oxford Textbook Pages : 381 - 382, 386 - 387
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Show Specification Ref : 3.2.6

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Question 1 / 5

AQA Jan 2011 Paper 5 Q6 section b answer all questions in the spaces provided do not write outside the box aqueous metal ions can be identified by test tube reactions for each of the following describe what you would observe write an equation or equations for any reactions that occur a the addition of aqueous sodium carbonate to a solution containing fe h o aq ions marks b the addition of aqueous sodium hydroxide dropwise until in excess to a solution containing al h o aq ions marks wmp jan chem do not write outside the box c the addition of dilute aqueous ammonia dropwise until in excess to a solution containing cu h o aq ions marks d the addition of concentrated hydrochloric acid dropwise until in excess to a solution containing cu h o aq ions marks turn over for the next question turn over wmp jan chem
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Question 2 / 5

AQA Jan 2012 Paper 5 Q8 do not write outside the box in its reactions with transition metal ions ammonia can act as a br nsted lowry base and as a lewis base a define the term lewis base mark b write an equation for a reaction between aqueous copper ii ions cu h o and ammonia in which ammonia acts as a br nsted lowry base state what you would observe marks extra space c write an equation for a different reaction between aqueous copper ii ions cu h o and ammonia in which ammonia acts as a lewis base but not as a br nsted lowry base state what you would observe marks extra space wmp jan chem do not write outside the box d an excess of dilute ammonia solution is added to an aqueous solution containing iron ii ions in a test tube that is then left to stand for some time state and explain what you would observe marks extra space e diaminoethane h nch ch nh like ammonia can react as a base and as a ligand e i write an equation for the reaction that occurs between an aqueous solution of aluminium chloride and an excess of aqueous diaminoethane describe the appearance of the aluminium containing reaction product marks extra space question continues on the next page turn over wmp jan chem do not write outside the box e ii write an equation for the reaction that occurs between an aqueous solution of cobalt ii sulfate and an excess of aqueous diaminoethane draw a diagram to show the shape of and bonding in the complex product write an equation for the reaction that would occur if the complex product of this reaction were allowed to stand in contact with oxygen gas marks end of questions wmp jan chem there are no questions printed on this page do not write on this page answer in the spaces provided wmp jan chem there are no questions printed on this page do not write on this page answer in the spaces provided copyright aqa and its licensors all rights reserved wmp jan chem
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Question 3 / 5

AQA Jan 2013 Paper 5 Q5 do not write outside the box this question is about test tube reactions of some ions in aqueous solution for each reaction in parts a to d state the colour of the original solution state what you would observe after the named reagent has been added to the solution in each case write an equation for the reaction that occurs a an excess of dilute sulfuric acid is added to a solution containing cro ions colour of original solution observation after an excess of reagent has been added equation marks b sodium hydroxide solution is added to a solution containing fe h o ions colour of original solution observation after reagent has been added equation marks c an excess of ammonia solution is added to a solution containing cu h o ions colour of original solution observation after an excess of reagent has been added equation marks wmp jan chem d sodium carbonate solution is added to a solution containing al h o ions do not write outside the box colour of original solution observations after reagent has been added equation marks turn over for the next question turn over wmp jan chem
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Question 4 / 5

AQA Jun 2013 Paper 5 Q7 section b answer all questions in the spaces provided do not write outside the box an excess of a given reagent is added to each of the following pairs of aqueous metal ions for each metal ion state the initial colour of the solution and the final observation that you would make in each case write an overall equation for the formation of the final product from the initial aqueous metal ion a an excess of aqueous sodium carbonate is added to separate aqueous solutions containing fe h o and fe h o marks b an excess of concentrated hydrochloric acid is added to separate aqueous solutions containing cu h o and co h o marks wmp jun chem do not write outside the box c an excess of dilute aqueous sodium hydroxide is added to separate aqueous solutions containing fe h o and cr h o marks d an excess of dilute aqueous ammonia is added to separate aqueous solutions containing al h o and ag h o marks turn over for the next question turn over wmp jun chem
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Question 5 / 5

AQA Jun 2015 Paper 5 Q7 section b answer all questions in the spaces provided do not write outside the box a a sample of solid chromium iii hydroxide displays amphoteric character when treated separately with dilute hydrochloric acid and with dilute aqueous sodium hydroxide write an ionic equation for each of these reactions include the formula of each complex ion formed describe the changes that you would observe in each reaction marks wmp jun chem do not write outside the box b aqueous solutions of copper ii sulfate and cobalt ii sulfate undergo ligand substitution reactions when treated separately with an excess of dilute aqueous ammonia write equations for these reactions include the formulae for any complex ions describe the changes that you would observe in each reaction marks turn over for the next question turn over wmp jun chem
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