All the answers are provided for the questions, I just need to see the work on how to get each answer. For the lab report the questions are in bold and I need to see the work on how to solve for them.

Question 1) A hydrogen atom atom has a diameter of 1.06 x 10^-10 meters. If we assume that a hydrogen atom is spherical, how many hydrogen atoms could fit into a 1 cubic centimeter box? Assume that all of the atoms fit together next to each other like placing tennis balls in a cardboard box. The second layer sits directly on top of the first layer and so on.

The answer is about 8.4 x 10^23. I need to know how to get to this answer.

Question 2) It takes exactly 83 drops of Palmatic-B acid to make 1 milliLiter when a standard plastic eyedropper is used. When this is diluted with ethyl alcohol to 0.1%, what is the volume of the Palmatic-B in one drop now? 

The answer is 1.2 x 10^-5 cm^3. I need to know how to get to this answer.

Question 3) A drop of oil from Tim's motorboat fell onto Elko Lake. If the spot spread out to a perfect circle of 6.3 metes in diameter and had a thickness of 57 Angstroms, what was the volume of the original drop? 

The answer is .178 cm^3. I need to know how to get to this answer.

Question 4) Exactly one milliLiter of Palmatic-B acid (acts just like Oleic acid) is thrown into Elko Lake. It is undiluted. It spreads out into a diameter of 22.56 meters. Determine the length of a Palmatic-B acid molecule.

The answer is 25 Angstroms. I need to know how to get to this answer.

Question 5) This is a lab report, it has the introduction and procedure as well as the observations. I need to see the work for answering the questions in bold at the bottom of the lab.

Lab #6: Determination of the size of a molecule

Introduction: Molecules that are repelled by water are called hydrophobic. Molecules that are attracted to water are called hydrophilic. Cooking oil is hydrophobic; it won't mix with water. Some molecules have one end that is hydrophobic and one end that is hydrophilic. There are such molecules in cells in your body. They are used to take hydrophobic nutrients into the cell that is mostly water. Soaps can dissolve both hydrophobic and hydrophilic substances and be washed away by water. Oleic acid is a substance with one hydrophobic and one hydrophilic end. When a small amount of oleic acid is placed on the surface of the water, it stands on end with the hydrophilic end towards the water and the hydrophobic end away. If you could see them, they would look like blades of grass standing straight upright. In this lab, we will find the length of one oleic acid molecule by spreading a small amount over the surface of the water and measuring the diameter of the circle. The oleic acid spreads itself into a one-molecule thick layer in the shape of a very flat cylinder.

Procedure: Using a pipette, thin out the oleic acid with ethyl alcohol. Use 0.4 ml of oleic acid to 200 ml of ethyl alcohol. This makes 500:1 ratio mixture, or in other words, we have a 0.2% solution of the oleic acid in the ethyl alcohol. From this solution, using a plastic dropper, we will determine how many drops it takes to fill a graduated cylinder to 1 mL. (1mL=1cc). Doing this twice we will take the average. Fill a pizza tray with a layer of water. Add a few crystals of potassium permanganate to darken the water. Sprinkle some lycopodium powder onto the surface of the water using your small spatula. This will be used to outline our oil spot when we place one drop of the diluted solution onto the surface.

When the water is still, place one drop of the thinned out 0.2% oleic acid solution into the center of the pan. You will suddenly see the oleic acid spreading out - displacing the powder. Quickly measure the diameter of the “circle” formed using a meter stick.

Observations: Number of drops of the 0.2% ethanol - Oleic acid solution to make one mL

Trial 1: 19

Trial 2: 17

Remember 1mL=1cm^3

The size of the spot formed by dropping one drop of the 0.2% oleic acid solution onto the water surface: 27 centimeters in diameter.

If the oleic acid were not thinned out the spot would have been as big as the room (larger than the pizza tray).

Determination of volume of a drop: 

Determination of the oleic acid per drop: 

Determination of the area of the spot formed: 

Determination of the length of the Oleic acid molecule: 

Comparison to accepted values for the length of Oleic acid molecule

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