Chemistry Practice Problems Instantaneous Rate of Change Practice Problems Solution: The isomerization of methyl isonitrile (CH3NC) to ...

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Solution: The isomerization of methyl isonitrile (CH3NC) to acetonitrile (CH3CN) was studied in the gas phase at 215 oC, and the following data were obtained:Time (s)[CH3NC] (M)00.016520000.011050000.0059180000.00314120000.00137150000.00074Graph [CH3NC] versus time.

Problem
The isomerization of methyl isonitrile (CH3NC) to acetonitrile (CH3CN) was studied in the gas phase at 215 oC, and the following data were obtained:


Time (s)[CH3NC] (M)
00.0165
20000.0110
50000.00591
80000.00314
120000.00137
150000.00074


Graph [CH3NC] versus time.

Solution

When making a graph, we put the independent variable on the x-axis while we put the dependent variable on the y-axis.


time (s) → “set value” → doesn’t change → independent variable

[CH3NC] → changes over time → dependent variable

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