August 2017 Chemistry Regents #73-77

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Questions 73-77

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Base your answers to questions 73 through 77 on the information below and on your knowledge of chemistry.

 Diethyl ether is used as a laboratory and industrial solvent. The boiling point of diethyl ether at standard pressure is 34.6�C. The equation below represents a reaction that produces diethyl ether.

73 Identify the element in diethyl ether that allows it to be classified as an organic compound. [1]

Answer-->  C

74 State the number of electrons shared between the carbon atoms in one molecule of the organic reactant. [1]

Answer-->4  or 2 pairs

75 State why the reaction is classified as a synthesis reaction. [1]

Answer--> 2 substances form 1

76 Explain, in terms of the strength of intermolecular forces, why the boiling point of diethyl ether at standard pressure is lower than the boiling point of water at standard pressure. [1]

Answer-->  Diethyl ether has weaker IMFs

or water  has stronger IMFs

77 Draw a structural formula for an isomer of the product that has the same functional group. [1]

Link to ANSWER 77

 

Next-->Questions 78-81

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

Questions 51-52 Questions 53-54 Questions 55-58 Questions 59-60 Questions 61-65 Questions 66-68 Questions 69-72 Questions 73-77  Questions 78-81  Questions 82-85

 

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