In this lab, we measured the pressure in the popcorn kernels. The popcorn kernels have water inside them, and when the water boils and has a lot of pressure, then it pops and becomes popcorn. First, we weighed all the measurements.

2.34 grams of water for 5 mL of water
30 kernels in total which was 4 grams in total
water displacement with kernels- 4.8
final weight- 118.5 including all the popped kernels
before popping 120.5
20 kernels popped, 10 did not.

4.8 divided by 30 is .16 and multiplied that by 20 is 3.2 mL.

then I took the 2 grams of the mass of H20 loss and found that that was.11 moles H2O

then I took the PV=nRT formula so
(.11 mole h20)(498 K)(.0821)
over 3.2 mL for the volume

with this equation, I got 1.45 and that divided by 20 of the number of kernels popped is .07 which I am sure is incorrect.

6. I think all the kernels did not pop because it got too hot. Most of the kernels, as you can see in the picture above that, did not pop looked like they were burnt, rather than popped. I think we may have used too much oil, or the oil was not evenly distributed so some of the kernels popped and others did not.
7. Obviously, something went wrong with our calculations because we got .07 atm per each kernel. I think it's because a lot of the popcorn pieces we counted as "popped" were not really popped, and were more of just bigger pieces than the kernels. I think also the moving of the bunsen burner could have affected the end result because there was an uneven distribution of the heat produced by each kernel. There also could have been a lot of miscalculations on the weight of the products, or the kernels could have been just bad.

I think if I were to do this assignment again, I would use different kernels and be a lot more precise with all the measurements. I would measure with a digital scale, rather than a 3 beam balance scale. I would use a more precise amount of oil and be more even with all the fire with kernels. I would also try out different numbers with the number of kernels. I would also try to be more precise with the counting of the kernels and the ones that did not pop.