The Reaction That Occurs in a Breathalyzer,a Device Used to Determine

question 49

Multiple Choice

The reaction that occurs in a Breathalyzer,a device used to determine the alcohol level in a person's bloodstream,is given below.If the rate of appearance of Cr₂(SO₄) ₃ is 1.64 mol/min at a particular moment,what is the rate of disappearance of C₂H₆O at that moment? 2 K₂Cr₂O₇ + 8 H₂SO₄ + 3 C₂H₆O → 2 Cr₂(SO₄) ₃ + 2 K₂SO₄ + 11 H₂O

• A) 0.547 mol/min
• B) 1.09 mol/min
• C) 2.46 mol/min
• D) 4.92 mol/min

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