January 2015 Chemistry Regents #51-53

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Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Question 51-53 Questions 54-55
 Questions 56-58 Questions 59-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-72  Questions 73-75  Questions 76-78  Questions 79-81 Questions 82-85

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Questions

 

 

Base your answers to questions 51 through 53 on the information below and on your knowledge of chemistry.

The balanced equation below represents the reaction of glucose, C6H12O6, with oxygen at 298 K and 101.3 kPa.

C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(ℓ)

51 Determine the mass of CO2 produced when 9.0 grams of glucose completely reacts with 9.6 grams of oxygen to produce 5.4 grams of water. [1]

Answer-->  any value from 13.155 g to 13.2042 g

52 Compare the entropy of the reactants to the entropy of the products. [1]

Answer-->The entropy of the reactants is less than the entropy of the products.

53 Write the empirical formula for glucose. [1]

Answer--> CH2O

 

 

 
 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Question 51-53 Questions 54-55
 Questions 56-58 Questions 59-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-72  Questions 73-75  Questions 76-78  Questions 79-81 Questions 82-85

 

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