CRYSTAL, BEER LAW, & ACID BASE TITRATION LAB

ChemTech

INTERMOLECULAR FORCES LAB

Gas Behavior

In the gas behavior lab we had three different lab the first one Temperature vs. Volume, Volume vs. Pressure, and Pressure vs. Temperature.

All of these have there own law. 

Boyle's Law- Is when pressure is up, volume is down.

Guy- Lussac's Law- Temperature is up, pressure will be up. 

Charle's Law- Volume is up, temperature up.

This lab we did Temperature vs. Volume. We used a test tube that was hooked up to a temperature probe. We started the syringe at 10cc. Then we placed it in a ice cold cooler. The temperature of it was zero degrees Celsius. We watch as the syringe's piston moved in this case it move down a degree. After that we waited till the syringe got back to room temperature. Then we put it in a hot water tube, this was eighty degrees Celsius. The hot water made the syringe piston move up to 15cc. Finally we put the syringe in warm water, it was about fifty degrees Celsius. And the piston move up one degree.  

After the first lab we did Volume vs. Pressure. Here we had fun with our chemistry books.We used a piston of a syringe like in the picture below. We would stack the books on to the top of the piston to see how pressure would affect the volume. We got up to six books. Every time we would stack a book the piston would lower more and more.   

The final lab we did was Pressure vs. Temperature. For this we used a computer, pressure sensor, and  a test tube. We place the test tube into the hot bath which was 80'C and then to a ice bath 0'C. After those we places it into a Warm bath which was 50'C. This graph shows you how temperature affect the pressure of it.

AgNo3 + Cu Lab

I had a lot of fun during this lab. We watch as the copper wire changed. Then we seen how it reacted with the silver. After everything we were able to find the percent error of the silver and the copper.

POPCORN & CRYSTAL LAB

 

In these labs we found out the percent of water in the popcorn kernel and the crystal. On both labs we used a Bunsen Burner. We were able to find the percent of water by using the hydrate formula.  

6.02x10^23

     The mole is the SI base unit that scientist use to measure a substance. But it is not helpful for cake baking. The mole of any substances contains 6.02x10^23 representative particles. Some of these particles are atoms, molecules, formula units, and so on. Amedeo Avogadro was the one who started the mole in the year 1811.


      In our lab we had to figure out what element each cup was. We had to do this by finding the atomic mass for each of the different cups. We weighed the number of grams that the cup held. Then we took the number of grams and divided by the number of moles and got the atomic mass of an element. We then used our periodic table to figure out which element we had. And that is how we found out the element. Down below is a chart where we check if our element was correct.
9.44 c
31.53 g
53.90 d         Here is the number of grams we got for each letter.
15.10 f
28.30 b
45.55 h
20.74 e
25.80 j          
32.60 I
4.87 a