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

question 22

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^-1 at a particular moment,what is the rate of disappearance of C₂H₆O at that moment?
2 K₂Cr₂O₇(aq) + 8 H₂SO₄(aq) + 3 C₂H₆O(aq) → 2 Cr₂(SO₄) ₃(aq) + 2 K₂SO₄(aq) + 11 H₂O(l)

• A)0.547 mol min^-1
• B)1.09 mol min^-1
• C)2.46 mol min^-1
• D)4.92 mol min^-1

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Definitions:

Quality

The degree of excellence of a product or service, often measured against specifications or standards.

MC = P

A condition in economics where marginal cost equals price, often indicating the point of profit maximization for firms.

Monopolistic Competition

A market structure characterized by many firms selling products that are similar but not identical, allowing for significant influence over pricing.

Product Differentiation

The process of distinguishing a product or service from others, to make it more attractive to a particular target market.