A Certain Reaction, Reaction A $\rarr$ Products, Is First Order with Respect to A

question 13

Multiple Choice

A certain reaction, reaction A $\rarr$ products, is first order with respect to A.Starting with [A] = 0.250M, it takes 45 min to reduce the concentration of A to 0.110M.What is its rate constant for this reaction?

• A)7.9 x 10^-3 min^-1
• B)1.1 x 10^-1 min^-1
• C)3.0 x 10^-4 min^-1
• D)1.8 x 10^-2 min^-1
• E)3.1 x 10^-3 min^-1

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Definitions:

Groundwater Contamination

Groundwater contamination occurs when pollutants, from sources like industrial waste, agricultural chemicals, or improper waste disposal, percolate into natural groundwater sources, making it unsafe for consumption and the environment.

Hazardous Waste

Waste that poses substantial or potential threats to public health or the environment due to its toxicity, chemical reactivity, flammability, or other characteristics.

Residential Wells

Small-scale water extraction facilities located on private property used primarily to supply water to individual homes or small communities.

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A water-based environment, including oceans, rivers, lakes, and wetlands, where plants and animals interact with the physical and chemical features.