I'm working on a lab where students burn a candle and get mass change using an analytical scale to calculate CO2 released. We then look at ocean acidification as a result of more CO2 entering the water.
If a paraffin candle loses 0.5g of mass, that means ~3g of CO2 is produced which, incidentally is the amount of CO2 released per minute from normal breathing at rest for a human.
They'll blow into a BTB solution for a minute to watch it acidify. Should work out well.
#chemistry #teaching
Brian :cupofcoffee: :rss:
npub1rk…cfcdy
2026-09-27 23:36:29 UTC
Author Public Key
npub1rkr8tvf8udyuu5qwnrynpmfuw84gnydptrtgczywjfuu7kya3aesucfcdySeen on
wss://relay.mostr.pubPublished at
2026-09-27 23:36:29 UTCEvent JSON
{
"id": "b8d62ff11f32866be71c1f7abafd68f5cdf8a7a81a34669766fc069e4b1ac4b6",
"pubkey": "1d8675b127e349ce500e98c930ed3c71ea8991a158d68c088e9279cf589d8f73",
"created_at": 1790552189,
"kind": 1,
"tags": [
[
"t",
"chemistry"
],
[
"t",
"teaching"
],
[
"proxy",
"https://fosstodon.org/users/brianb/statuses/117345628277070883",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "I'm working on a lab where students burn a candle and get mass change using an analytical scale to calculate CO2 released. We then look at ocean acidification as a result of more CO2 entering the water. \n\nIf a paraffin candle loses 0.5g of mass, that means ~3g of CO2 is produced which, incidentally is the amount of CO2 released per minute from normal breathing at rest for a human.\n\nThey'll blow into a BTB solution for a minute to watch it acidify. Should work out well.\n\n#chemistry #teaching",
"sig": "3b5ddd35c86ea924df96540d6bf3f99e4a3d9d0afc9da0948f06b327584398bbd5e43fa0967d8f716f316c91ebce041382ac1289645b5b16645a529fc1c129a2"
}