Syrer by Kjersti Dybwik https://padlet.com/kjerstidybwik12/e5pmfpysr9st To begreper om syrer en-us 2019-03-06 11:36:09 UTC 2019-03-07 09:55:05 UTC hello@padlet.com 18nanselsi https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765814 Surt]]> 2019-03-07 09:26:03 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765814 18frolartr https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765828 Et stoff som etser]]> 2019-03-07 09:26:07 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765828 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765902 Syre er surt.]]> 2019-03-07 09:26:16 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765902 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765926 En stoff]]> 2019-03-07 09:26:21 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765926 18nanselsi https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765972 Et stoff som etser]]> 2019-03-07 09:26:29 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765972 Man får en syndrom https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765989 2019-03-07 09:26:32 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338765989 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766018 Surt]]> 2019-03-07 09:26:41 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766018 18stahasfa https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766045 Et stoff]]> 2019-03-07 09:26:46 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766045 18bomholad https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766095 Syrer er både i oss, frukt, bær og dyr]]> 2019-03-07 09:26:59 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766095 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766097 Det er veldig surt]]> 2019-03-07 09:27:00 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766097 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766143 Et stoff]]> 2019-03-07 09:27:08 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766143 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766149 Sterkt]]> 2019-03-07 09:27:09 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766149 Surt 18frostrna https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766154 2019-03-07 09:27:10 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766154 Syre i eple https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766197 2019-03-07 09:27:22 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766197 18nanselsi https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766268 Syrer i sitron]]> 2019-03-07 09:27:34 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766268 18nanmolma https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766312 Syre i sitron]]> 2019-03-07 09:27:45 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766312 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766319 Sure ting som sitron]]> 2019-03-07 09:27:47 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766319 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766339 Syrer i sitron]]> 2019-03-07 09:27:50 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766339 Syre kan smelte ansikt https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766358 2019-03-07 09:27:56 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766358 18bomholad https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766376 Det kan være gass, væske og fast stoff]]> 2019-03-07 09:28:03 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766376 Im bobo 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766379 Etsende]]> 2019-03-07 09:28:04 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766379 18stahasfa https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766420 Det er syrer i eple]]> 2019-03-07 09:28:15 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766420 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766456 Melkesyre]]> 2019-03-07 09:28:24 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766456 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766461 Stoffer som sure og etser]]> 2019-03-07 09:28:25 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766461 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766492 Etsende]]> 2019-03-07 09:28:34 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766492 18nanselsi https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766505 For mye syre er dødelig ]]> 2019-03-07 09:28:36 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766505 21tinal0405 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766522 Sitron]]> 2019-03-07 09:28:40 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766522 Mina er smart https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766536 Syre sin pH er lavere enn 7]]> 2019-03-07 09:28:43 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766536 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766547
Vondt]]> 2019-03-07 09:28:45 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766547 21tinal0405 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766575 Brus]]> 2019-03-07 09:28:51 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766575 Melkesyre i beina https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766576 2019-03-07 09:28:51 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766576 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766584 2 + 2 = 3]]> 2019-03-07 09:28:54 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766584 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766637 Syre er et kjemisk stoff som gir fra seg H+- ionier i vann, som blir til en sur løsning. Saltsyre, sitronsyre og eplesort er flere eksempler på syrer.]]> 2019-03-07 09:29:03 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766637 21tinal0405 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766662 Appelsinjuice ]]> 2019-03-07 09:29:10 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766662 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766684 Syrer i godteri]]> 2019-03-07 09:29:15 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766684 2 + 2 = 6 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766709 2019-03-07 09:29:23 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766709 18bomholad https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766728 pH]]> 2019-03-07 09:29:31 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766728 18nanmolma https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766729 Spy]]> 2019-03-07 09:29:31 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766729 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766765 Et stoff som har lav pH verdi]]> 2019-03-07 09:29:39 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766765 18nanselsi https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766813 Mage syre]]> 2019-03-07 09:29:49 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766813 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766869 Vi kan måle syrer og baser i en skala.]]> 2019-03-07 09:30:00 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766869 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766873 Noen syrer er svært etsene og kan være farlig i berøring med hud og andre ting.]]> 2019-03-07 09:30:01 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766873 Jeg er lexikon 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766898 Syrer er en gruppe kjemiske stoffer som kan defineres på 
  • En syre er et molekyl eller ion som kan avgi ett eller flere H+-

Sterke og svake syrer
Vi kjenner noen få sterke syrer og mange svake syrer. De sterke syrene er nær 100 prosent spaltet i vann.

De best kjente sterke syrene er saltsyre HCl(aq), svovelsyreH2SO4 og salpetersyre HNO3(aq). Disse formlene er molekylformler. Strukturformelen for svovelsyre er (HO)2SO2 og for salpetersyre HONO2. Strukturformelen viser at H-atomet er bundet til et oksygenatom.

Fosforsyre H3PO4 og eddiksyre CH3COOH er de mest kjente svake syrene. De er bare delvis spaltet i vann. Eddiksyre har vært kjent fra oldtiden. Strukturformelen for fosforsyre er (HO)3PO.

Mange frukter og bær inneholder svake organiske syrer som har fått trivialnavn etter plantene de først ble funnet i. Noen eksempler er sitronsyre, eplesyre og oksalsyre.

Mindre enn 1 prosent av en svak syre er vanligvis spaltet. Andelen som spaltes øker med fortynning.

Les mer i Store norske leksikon


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]]> 2019-03-07 09:30:07 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338766898 21tinal0405 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767008 Edik]]> 2019-03-07 09:30:35 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767008 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767050 Brus]]> 2019-03-07 09:30:41 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767050 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767052 Den svenske kjemikeren Svante Arrhenius (1859-1927) beskrev syrer som stoffer som øker konsentrasjonen av hydrogenioner (H+) når de blir løst i vann. Baser ble beskrevet som stoffer som danner hydroksidioner (OH-) når de blir løst i vann. Denne definisjonen begrenser syrer og baser til vannløselige stoffer.]]> 2019-03-07 09:30:41 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767052 18nanmolma https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767281 Melkesyre]]> 2019-03-07 09:30:52 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767281 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767303 En syre er monokyl]]> 2019-03-07 09:30:55 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767303 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767355 Det finnes uorganiske syrer som er fra mineraler i bergarter]]> 2019-03-07 09:31:06 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767355 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767394 Er et kjemisk stoff]]> 2019-03-07 09:31:13 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767394 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767400 Ikke alle syrer er farlig]]> 2019-03-07 09:31:16 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767400 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767407  Jeg paca Mo Salah jeg er boss]]> 2019-03-07 09:31:17 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767407 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767411 Nei]]> 2019-03-07 09:31:19 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767411 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767465 Jo syrer er farlig]]> 2019-03-07 09:31:31 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767465 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767487 Hei norge]]> 2019-03-07 09:31:37 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767487 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767502 Ooo]]> 2019-03-07 09:31:40 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767502 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767523 Nej]]> 2019-03-07 09:31:45 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767523 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767565 Går det bra]]> 2019-03-07 09:31:52 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767565 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767571 Drit i å skriv ]]> 2019-03-07 09:31:53 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767571 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767774 Ta me vår da ]]> 2019-03-07 09:32:38 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767774 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767814 God daym]]> 2019-03-07 09:32:46 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767814 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767823 Nej]]> 2019-03-07 09:32:49 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767823 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767861 Jan-Egil har]]> 2019-03-07 09:32:58 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767861 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767874 Slide]]> 2019-03-07 09:33:02 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767874 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767909 Slide]]> 2019-03-07 09:33:10 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767909 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767919 Slide]]> 2019-03-07 09:33:15 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767919 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767955 Slide in the chat]]> 2019-03-07 09:33:23 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767955 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767984 Mina slutt]]> 2019-03-07 09:33:29 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338767984 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768013 Yeeait]]> 2019-03-07 09:33:37 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768013 21tinal0405 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768137 Ost]]> 2019-03-07 09:34:02 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768137 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768420 Der osten ist gelb]]> 2019-03-07 09:34:56 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768420 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768460 Mina er best]]> 2019-03-07 09:35:06 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768460 18nantotah https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768600 Ost

]]> 2019-03-07 09:35:40 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338768600 https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338774172 Hit or miss, i guess they never miss huh]]> 2019-03-07 09:55:05 UTC https://padlet.com/kjerstidybwik12/e5pmfpysr9st/wish/338774172