https://padlet.com/yjsuh21/tps7lw9jomjm Leader - Sam Yang Yoonjay Suh, Youngsun Hong, Ji Won Choi, Lucia Jin en-us 2020-01-23 00:00:40 UTC 2026-01-22 07:35:59 UTC hello@padlet.com https://padlet.net/icons/png/1f9d0.png yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434884597 There was a leak on the system, not flowing the CO2 gas through system. We had to find the part where it leaks]]> 2020-01-23 00:25:55 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434884597 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434886967 2020-01-23 00:35:07 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434886967 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434903631 We used the gas syringe to pump the air as the pressure of ruuber tube was too high, we pumped the air out to get through the gas]]> 2020-01-23 01:41:00 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434903631 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434910090 Test for sulfur]]> 2020-01-23 02:03:12 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434910090 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434911146 Although we first thought there was a leak in our system, after testing the system by blowing air into it and checking whether gas successfully goes through it, we found out that there was no leaks in the system; rather, it did not work because there was not enough pressure to push the gas through the system. After much consideration, we decided that putting the gas syringe at the other end of the system would provide enough pressure difference.]]> 2020-01-23 02:08:08 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434911146 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434911690 2020-01-23 02:09:38 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434911690 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912473 After our experiment has been improved, we finally checked the carbon dioxide content in the natural gas we use in our school laboratory. We first cooled the gas and made it go through anhydrous copper sulfate to capture any water content, then pushed the gas through lime water. The lime water turned opaque quickly, indicating that there was a lot of carbon dioxide content in the combustion product of natural gas.]]> 2020-01-23 02:12:42 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912473 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912898 2020-01-23 02:15:04 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912898 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912903 2020-01-23 02:15:06 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912903 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912909 2020-01-23 02:15:08 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912909 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912918 2020-01-23 02:15:10 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434912918 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434913315 2020-01-23 02:17:14 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434913315 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434913677 Redox reaction of potassium dichromate]]> 2020-01-23 02:18:44 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434913677 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434928476 After checking carbon dioxide content, we ran a test for sulfur by using a potassium dichromate solution. There was no color change so we could conclude that there was no sulfur dioxide being emitted into the atmosphere by our school Bunsen burner. After the test, we also did a redox reaction of potassium dichromate and alcohol in order to observe what a positive reaction would be, which would turn to solution green.]]> 2020-01-23 03:25:39 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434928476 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434930336 Carbon dioxide: It is a major greenhouse gas that worsens global warming. More greenhouse gas in the atmosphere would lead to climate change.
Sulfur dioxide: It is a toxic gas that harms one's health. It irritates the skin and mucous membranes of the eyes, nose, throat and lungs. High concentration of it can cause inflammation and irritation of the respiratory system. It also causes the acid rain.

Both gases are emitted into the atmosphere when fossil fuel is burned, which also occurs when we use our school Bunsen burner.]]> 2020-01-23 03:33:41 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434930336 yshong21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434933440 There was no sulfur dioxide emitted from our school Bunsen burner, but a lot of carbon dioxide was emitted from it. This is concerning considering the fact that greenhouse gases are emitted whenever we use our school Bunsen burner. Therefore, we need a better alternative fuel source to use in order to reduce the amount of greenhouse gas emitted into the atmosphere.]]> 2020-01-23 03:46:09 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434933440 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434949251 2020-01-23 05:21:59 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434949251 yjsuh21 https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434950269 2020-01-23 05:29:29 UTC https://padlet.com/yjsuh21/tps7lw9jomjm/wish/434950269