Here are the values i have from my experiment:
molar mass of stearic acid: 284.49 g/mol
density of solid stearic acid: 0.85 g/cm^3
concentration of stearic acid: 0.1 g/l
# of drops of stearic acid without residue +1 : 12 drops
diameter of water surface (cm): 14.8
automatic pipet sample volume: 25 ml
1.) total volume of stearic acid solution dispensed to make monolayer (micro l)
2.) grams of stearic acid dispensed to make the monolayer. use the concentration of stearic acid in hexane and the volume dispensed
3.) volume of stearic acid forming the monolayer. use the mass of stearic acid and the density of solid stearic acid to find this volume.
4.) area of stearic acid monolayer.
5) thickness of stearic acid monolayer. thickness = volume/ area

If a solution had a ph of 7 what is the solution

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent