Edexcel Jun 2017 Paper 1 Q11

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11 When dilute sulfuric acid is added to a solution of lead(II) nitrate, the reaction is Pb(NO3)2(aq) + H2SO4(aq) (cid:111) PbSO4(s) + 2HNO3(aq) (1) (a) This reaction is A displacement. B neutralization. C precipitation. D redox. (b) When excess sulfuric acid was added to a solution containing 6.62 g of lead(II) nitrate, 4.80 g of lead(II) sulfate was obtained. What is the percentage yield by mass of lead(II) sulfate in this reaction? (1) [Molar masses: Pb(NO3)2 = 331 g mol1 ; PbSO4 = 303 g mol1] A 91.5 % B 79.2 % C 72.5 % D 66.4 % Use this space for rough working. Anything you write in this space will gain no credit. (Total for Question 11 = 2 marks) A E R A S I H T N I E T I R W T O N O D A E R A S I H T N I E T I R W T O N O D A E R A S I H T N I E T I R W T O N O D *P53491A0732* Turn over<br />

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