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The rate of disappearance of HCl was measured for the following reaction: CH3OH(aq) + HCl(aq) --->...

The rate of disappearance of HCl was measured for the following reaction: CH3OH(aq) + HCl(aq) ---> CH3Cl(aq) + H2O(l) The following data were collected: Time (minutes) HCl (M) 0.0 1.85 54.0 1.58 107.0 1.36 215.0 1.02 430.0 0.580 b. Graph [HCl] verses time, and determine the instantaneous rate in M/ min at t=75.0 min and t=250 min.

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Answer #1
Time (minutes) HCl (M)
0.0 1.85
54.0 1.58
107.0 1.36
215.0 1.02
430.0 0.58

We graph the data and get the curve. After that, we select the points of the curve that are asked for (75 and 250), and we make tangent lines, of which the slope is determined. The slope is the instantaneous rate at that point.

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