$\"\"$

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(a)

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Graph the data using regression capabilities of graphing utility:

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$\"\"$

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Observe the graph: \ \

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The equation is $\"\"$ .

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$\"\"$

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(b)

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Graph:

\

Graph the function $\"\"$ .

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$\"\"$

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$\"\"$

\

(c)

\

Graph:

\

Graph the function $\"\"$ .

\

$\"\"$

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$\"\"$

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(d) Find $\"\"$ and $\"\"$ .

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Consider $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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Consider $\"\"$ .

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$\"\"$

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$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$ .

\

$\"\"$

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(e)

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The limiting concentration is $\"\"$ .

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$\"\"$

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(a)

\

Graph the data using regression utility:

\

$\"\"$

\

The equation is $\"\"$ .

\

(b)

\

Graph:

\

Graph the function $\"\"$ .

\

$\"\"$

\

(c)

\

Graph:

\

Graph the function $\"\"$ .

\

$\"\"$

\

(d) $\"\"$ and $\"\"$ .

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(e) $\"\"$ .

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(f) The limiting concentration is $\"\"$ .