The decomposition of H2O2 was studied and the concentration (in moles per liter) as a function of time was determined.   a.  Create a spreadsheet in Excel with the following columns and values.  Calculate values for the natural logarithm of [H2O2] using an appropriate formula. Time H2O2(M) LN [H2O2] 0 0.862   120 0.556   240 0.394   360 0.246   480 0.149   b. Create a graph of [H2O2] versus time.  Use the Scatter chart type and use the subtype that connect the points with a line.  c. Create a graph of LN(H2O2) versus time.  Use the scatter chart type and use the subtype that does not connect the points with a line.  Instead, insert a trendline (linear fit) and display the equation of the line on the graph.   d. Using the trendline equation, calculate the natural log of concentration (LN[H2O2] corresponding to a time elapsed of 200 seconds.  From that value, calculate the molar concentration of H2O2  at 200 seconds

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The decomposition of H2O2 was studied and the concentration (in moles per liter) as a function of time was determined.  

a.  Create a spreadsheet in Excel with the following columns and values.  Calculate values for the natural logarithm of [H2O2] using an appropriate formula.

Time H2O2(M) LN [H2O2]
0 0.862  
120 0.556  
240 0.394  
360 0.246  
480 0.149  

b. Create a graph of [H2O2] versus time.  Use the Scatter chart type and use the subtype that connect the points with a line. 

c. Create a graph of LN(H2O2) versus time.  Use the scatter chart type and use the subtype that does not connect the points with a line.  Instead, insert a trendline (linear fit) and display the equation of the line on the graph.  

d. Using the trendline equation, calculate the natural log of concentration (LN[H2O2] corresponding to a time elapsed of 200 seconds.  From that value, calculate the molar concentration of H2O at 200 seconds

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