This was the second lab we did in our exploration of the different phases of matter. We different experiments using dry ice to compare solids and gases. Before starting this lab we took some notes and Andrew showed us a small experiment by turning the dry ice (solid Co2 into liquid) To do that we needed to raise the pressure. He put the dry ice into a small enclosed tube where the pressure built up. There was a meter on one end to measure the pressure or psi. After about a minutes the pressure built up to about 80 psi and we saw inside the tube; liquid c02. Then Andrew opened the valve and the c02 came shooting out of one end.
After doing this, our table groups all got some pieces of dry ice. I worked with Genevie, Jennifer, and Nancy when doing this lab. First we got a small glass cup and put room temperature water into it. Then we dropped some of the ice in it. Immediately we got a reaction. The ice was turning into a gas and bubbles filled with it started to come up. (Bottom left picture) Since this was our prediction, I would say that this part was a success. Then we started to use bubble soap with the gas. We first started blowing bubbles onto the glass that the try ice was. Our result was that the bubble started to grow as with gas filled into it.(Top right picture) We then wanted to what would happen if we put some bubble soap into the water itself. After that, we got a strange reaction where the gas that was coming up was filled within the tiny bubbles that the soap came up in. (Top left picture)
Andrew also suggested to try something else. To measure a piece of the dry ice and put it into and ballon. We measured out a solid piece of Co2 with the diameter of 5cm. We put into the balloon and after the co2 went entirely into a gases form we measure the diameter of the balloon to be 22cm.
Then we used this equation to find the ratio of solid to gas.
4/3 x 3.14 x r^3
Here is the volume for the solid co2: 4/3 x 3.14 x (2.5, 2.5, 2.5) = 65.416
Here is the volume for the balloon: 4/3 x 3.14 x (11, 11, 11) = 5, 572
So the ratio from solid to gas for dry ice is 65.416:5,572
At the end of this lab, I learned how matter changes from solid to liquid to gas from things like pressure and temperature. I think this knowledge will help me in the future when doing different labs and actually having accurate knowledge on the subject.
After doing this, our table groups all got some pieces of dry ice. I worked with Genevie, Jennifer, and Nancy when doing this lab. First we got a small glass cup and put room temperature water into it. Then we dropped some of the ice in it. Immediately we got a reaction. The ice was turning into a gas and bubbles filled with it started to come up. (Bottom left picture) Since this was our prediction, I would say that this part was a success. Then we started to use bubble soap with the gas. We first started blowing bubbles onto the glass that the try ice was. Our result was that the bubble started to grow as with gas filled into it.(Top right picture) We then wanted to what would happen if we put some bubble soap into the water itself. After that, we got a strange reaction where the gas that was coming up was filled within the tiny bubbles that the soap came up in. (Top left picture)
Andrew also suggested to try something else. To measure a piece of the dry ice and put it into and ballon. We measured out a solid piece of Co2 with the diameter of 5cm. We put into the balloon and after the co2 went entirely into a gases form we measure the diameter of the balloon to be 22cm.
Then we used this equation to find the ratio of solid to gas.
4/3 x 3.14 x r^3
Here is the volume for the solid co2: 4/3 x 3.14 x (2.5, 2.5, 2.5) = 65.416
Here is the volume for the balloon: 4/3 x 3.14 x (11, 11, 11) = 5, 572
So the ratio from solid to gas for dry ice is 65.416:5,572
At the end of this lab, I learned how matter changes from solid to liquid to gas from things like pressure and temperature. I think this knowledge will help me in the future when doing different labs and actually having accurate knowledge on the subject.