Submit your document with data table, graph, and questions responses below. 1. Create a graph of your data. Remember to include a title, axis labels, and units,
2. Does water or rubbing alcohol have a higher surface tension? Why do you think this?
3. Using the internet, look up the surface tensions of water and isopropyl alcohol. Were you correct?
4. Identify all the intermolecular forces that are interacting within water molecules,
5. What type of intramolecular bonding does a water molecule have?
6. Identify all the intermolecular forces that are interacting within rubbing alcohol molecules.
7. What type of intramolecular bonding does an alcohol molecule have?
8. Compare and contrast the intermolecular and intramolecular forces of water and isopropyl alcohol. How do the
properties resulting from those forces explain the differences in surface tension observed in the experiment?
9. Describe the polarity of water and isopropyl alcohol molecules and how this affects surface tension.
10. How did this experiment illustrate the concept of intermolecular forces and surface tension?

What is impossible to do with a hypothesis

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?