Thanks to DrBob222 for the help, but it only answered a few questions! PLEASE help answer, anyone?

This is a chemistry lab on boiling point, and I need some help with these questions!- Thanks!

(Info): You are going to take a trip. On this trip you will be stopping at different sites with varying altitudes. At each site you will compare the change in pressure and boiling point from the previous site to the new site.

Questions:

4a. You start at sea level on the beach in California. What would the atmospheric pressure be?

4b. What would the boiling point of water be?

5a. Now you've moved to Los Angeles, where the altitude is 87 meters above sea level. What has happened to the atmospheric pressure in comparison to when you were at sea level?

5b. What has happened to the boiling point of water?

5c. Would the atmospheric pressure be greater than or less than one atmosphere?

5d. Would the boiling point of water be greater than or less than 100°C?

6a. Now you find yourself on an airplane headed for Israel to visit the Dead Sea, which is below sea level. You have always wanted to visit there and now is your chance. What has happened to the atmospheric pressure?

6b. What has happened to the boiling point of water?

6c. Would the atmospheric pressure be greater than or less than one atmosphere?

6d. Would the boiling point of water be greater than or less than 100øC?

7a. While in Israel you run into a group of people who are headed for the Rocky Mountains. You have always wanted to climb to the top of Pike's Peak and decide to join them. Pike's Peak has an altitude of 4300 m. What has happened to the atmospheric pressure?

7b. What has happened to the boiling point of water?

7c. Would the atmospheric pressure be greater than or less than one atmosphere?
7d. Would the boiling point of water be greater than or less than 100°C?

7e. As you near the top of Pike's Peak, you feel your backpack becoming wet! The can of pop you put there when you were at the Dead Sea has exploded! Why do you think this happened?

Please help or will fail!

Those two facts, one about higher altitudes having lower pressure and lower altitudes having higher pressure and the other about boiling point in which boiling point decreases with decreasing pressure are the ONLY two points you need to answer ALL of the questions (perhaps the very last one about the soda pop can exploding is an exception). But logic will answer that one.

We don't DO homework but we help by providing information that will help you answer your homework questions.

I hate to see anyone fail, I'll give you what little information that I can.

I thought it was common knowledge that water boils at 100 degrees C (212 degrees F) at sea level. Water boils at higher temperatures at higher elevations.

This site may also help you.

http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html

I'm sorry, but I goofed! Water boils at LOWER temperatures at higher elevations.

Thanks, DrBob, for the correction.

Thank you guys- I don't need you to DO the homework for me- the help is perfect! Thanks for the site! I'm just very bad at chemistry, really every other subject is okay except for this one! Thanks a lot Ms. Sue and DrBob222!

To answer these questions, we need to understand the relationship between atmospheric pressure and altitude, as well as the effect of atmospheric pressure on the boiling point of water.

Let's start by explaining the relationship between atmospheric pressure and altitude. As you move higher in altitude, the atmospheric pressure decreases. This is because there is less air above you pressing down. Conversely, as you move lower in altitude, the atmospheric pressure increases because there is more air above you pressing down.

Now, let's talk about the effect of atmospheric pressure on the boiling point of water. Generally, as atmospheric pressure decreases, the boiling point of a liquid decreases. This is because the pressure exerted by the surrounding air affects the ability of the liquid to boil. At higher altitudes where the atmospheric pressure is lower, water can boil at a lower temperature.

Now, let's answer the questions step by step:

4a. At sea level, the atmospheric pressure is approximately 1 atmosphere. (To find this answer, you can use general knowledge or consult a reliable source, such as a textbook or online resource.)

4b. At sea level, the boiling point of water is 100°C. (This information is commonly known and can be found in textbooks or online resources.)

5a. When you move to Los Angeles, which is 87 meters above sea level, the atmospheric pressure would be slightly lower than 1 atmosphere. (To find this answer, you can use the relationship between altitude and atmospheric pressure explained earlier.)

5b. As you move to Los Angeles, the boiling point of water remains the same at 100°C. (This is because the change in altitude is relatively small and does not significantly affect the boiling point. At very low altitudes, the effect on the boiling point is negligible.)

5c. The atmospheric pressure would be slightly less than 1 atmosphere. (This is because Los Angeles is slightly above sea level, resulting in a slightly lower atmospheric pressure.)

5d. The boiling point of water would still be 100°C. (At relatively low altitudes, the change in boiling point is negligible, so it remains at 100°C.)

6a. When you reach the Dead Sea, which is below sea level, the atmospheric pressure would be slightly higher than 1 atmosphere. (As you move below sea level, there is more air above you, resulting in a slightly higher atmospheric pressure.)

6b. The boiling point of water decreases slightly as you move to the Dead Sea. It would be slightly below 100°C. (This is because, at higher atmospheric pressures, water requires more energy to boil, resulting in a slightly higher boiling point.)

6c. The atmospheric pressure would be slightly greater than 1 atmosphere. (Since you are below sea level, there is more air pressing down, resulting in a slightly higher atmospheric pressure.)

6d. The boiling point of water would be slightly below 100°C. (At higher atmospheric pressures, water requires more energy to boil, resulting in a slightly higher boiling point.)

7a. As you climb to the top of Pike's Peak, which is at an altitude of 4300 meters, the atmospheric pressure decreases significantly. It is much less than 1 atmosphere. (As you move higher in altitude, the atmospheric pressure decreases significantly.)

7b. The boiling point of water decreases significantly as you climb to the top of Pike's Peak. It would be significantly below 100°C. (The decrease in atmospheric pressure at high altitudes results in a lower boiling point for water.)

7c. The atmospheric pressure would be significantly less than 1 atmosphere. (At high altitudes, the decrease in atmospheric pressure is significant, resulting in a much lower atmospheric pressure.)

7d. The boiling point of water would be significantly below 100°C. (At high altitudes, the decrease in atmospheric pressure causes a considerable decrease in the boiling point of water.)

7e. The can of pop in your backpack exploded as you approached the top of Pike's Peak because the decrease in atmospheric pressure at high altitudes caused the pressure inside the can to be higher than the surrounding atmospheric pressure. This higher pressure inside the can caused it to burst. (This phenomenon, known as "cabin pressure," is well-known. As you ascend to higher altitudes, the air pressure decreases, and any enclosed container with pressurized contents can burst if the pressure difference becomes too great.)

Remember, if you need more accurate values or specific information for your lab, it is always best to consult reliable sources such as textbooks or scientific references.