June 2011 Chemistry Regents #62-63

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Questions

Base your answers to questions 62 through 63  on the information below.

At 550C, 1.00 mole of CO2(g) and 1.00 mole of H2(g) are placed in a 1.00-liter reaction vessel. The substances react to form CO(g) and H2O(g). Changes in the concentrations of the reactants and the concentrations of the products are shown in the graph below.

62. Determine the change in the concentration of CO2(g) between time t0 and time t1. [1]

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0.27mol/L  or -0.27mol/L

63. What can be concluded from the graph about the concentrations of the reactants and the concentrations of the products between time t1 and time t2? [1]

HIGHLIGHT TO SEE THE ANSWER

concentrations are constant (do not change)

 

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Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50

Question 51 Questions 52-54 Questions 55-59 Questions 60-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-70 Questions 71-73 Questions 74-76 Questions 77-79 Questions 80-82 Questions 83-85

 
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