The Half-Life of a First-Order Reaction Is 13 Min

question 42

Multiple Choice

The half-life of a first-order reaction is 13 min.If the initial concentration of reactant is it takes for it to decrease to 0.055 M.

• A)8.2
• B)11
• C)3.6
• D)0.048
• E)8.4

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Definitions:

Random Error

Variability in data that is caused by unpredictable and unavoidable fluctuations in the measurement process.

Linearly Correlated

A statistical relationship between two variables in which changes in one variable are associated with proportional changes in another variable along a straight line.

Normally Distributed

Describes a symmetric, bell-shaped distribution of data where the mean, median, and mode are equal, prevalent in many natural phenomena.

Coefficient of Determination

A statistical measure that explains the proportion of the variance for a dependent variable that's explained by an independent variable or variables in a regression model.