Given the Initial Rate Data for the Reaction a A)

question 21

Multiple Choice

Given the initial rate data for the reaction A + B ? C, determine the rate expression for the reaction. $$\begin{array} { l l l } { [ \mathrm { A } ] , \mathrm { M } } & { [ \mathrm { B } ] , \mathrm { M } } & \Delta [ \mathrm { C } ] / \Delta t ( \text { initial) } \mathrm { M } / \mathrm { s } \\\hline 0.0418 & 0.122 & 2.73 \times 10 ^ { - 4 } \\0.0836 & 0.122 & 10.9 \times 10 ^ { - 4 } \\0.0418 & 0.488 & 2.73 \times 10 ^ { - 4 }\end{array}$$

• A) \(\frac { \Delta [ \mathrm { C } ] } { \Delta t } = 5.35 \times 10 ^ { - 2 } \mathrm { M } ^ { - 2 } \mathrm {~s} ^ { - 1 } [ \mathrm {~A} ] [ \mathrm { B } ]\)
• B) \(\frac { \Delta [ \mathrm { C } ] } { \Delta t } = 1.27 \mathrm { M } ^ { - 2 } \mathrm {~s} ^ { - 1 } [ \mathrm {~A} ] ^ { 2 } [ \mathrm {~B} ]\)
• C) \(\frac { \Delta [ \mathrm { C } ] } { \Delta t } = 0.156 \mathrm { M } ^ { - 1 } \mathrm {~s} ^ { - 1 } [ \mathrm {~A} ] ^ { 2 }\)
• D) \(\frac { \Delta [ \mathrm { C } ] } { \Delta t } = 0.439 \mathrm { M } ^ { - 2 } \mathrm {~s} ^ { - 1 } [ \mathrm {~A} ] [ \mathrm { B } ] ^ { 2 }\)
• E) \(\frac { \Delta [ \mathrm { C } ] } { \Delta t } = 6.53 \times 10 ^ { - 3 } \mathrm {~s} ^ { - 1 } [ \mathrm {~A} ]\)

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Definitions:

Fertilizer

Materials applied to crops to supply essential nutrients needed for growth, typically containing nitrogen, phosphorus, and potassium.

Experimental Group

In a scientific experiment, a group in which the experimental variable is manipulated. Compare with control group.

Cladogram

A branching diagram that illustrates taxonomic relationships based on the principles of cladistics.

Relationships

The way in which two or more concepts, objects, or people are connected, or the state of being connected.