Time THU Remaining Time Question Completion Status: Question 5 of 33 Moving to a

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Time THU Remaining Time Question Completion Status: Question 5 of 33 Moving to another question wil save this response. 1 points Save Answer A simple distillation experiment was performed with a mixture of methanol and water The first distillate was is the collected at 86 C and the refractive index was measured to be e 20°C. Using the graph below, what methanol in water in the first distillate? IThe point of methanol is 64 Refractive Index for Methanol in Water at 20 degree Celsius 13410 Percent Methanol (in O 819 O 8696 O 2696 O 23% O 056 A Moving to another question will save this response. Question 5 of 33

Explanation / Answer

on the y axis we have the refractive index and on x axis percent methanol. So for refractive index 1.3382, the corresponding percent dissociation is 26%. To find out, draw a straight line parallel to x axis from 1.3382 on y axus till it cut the curve. then draw a straight line from this point parallel to y axis and see where it cuta the x axis. It will cut around 26%. So thats the correct answer.

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