Given the following data for Mass of test tube, beaker and cyclohexane = 100.17 g Mass of test tube and beaker = 84.07 g Freezing point of cyclohexane = 6.59 oC Mass of weighing paper + naphthalene =1.080 g Mass of weighing paper = 0.928 g Freezing point solution = 5.11 oC Kf = 20.8 oC/m Determine the following a. mass of cyclohexane in g (2 decimal places); _____ b. mass of naphthalene in g (4 decimal places); _____ c. freezing point depression (2 decimal places); _____
Given the following data for
Mass of test tube, beaker and cyclohexane = 100.17 g
Mass of test tube and beaker = 84.07 g
Freezing point of cyclohexane = 6.59 oC
Mass of weighing paper + naphthalene =1.080 g
Mass of weighing paper = 0.928 g
Freezing point solution = 5.11
oC
Kf = 20.8
oC/m
Determine the following
a. mass of cyclohexane in g (2 decimal places); _____
b. mass of naphthalene in g (4 decimal places); _____
c. freezing point depression (2 decimal places); _____
d. molality of solution (3 significant figures); _____
e. moles of naphthalene (3 significant figures); _____
f. molar mass of naphthalene, experimentally (3 significant figures); _____
g. % error if theoretical molar mass of naphthalene is 128.17 g/ mole, USE ABSOLUTE VALUE (3 significant figure); ____
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