https://padlet.com/katiarusso1/dao02osdxt1yiar2 en-us 2022-12-16 11:52:10 UTC 2023-05-19 11:01:02 UTC hello@padlet.com https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2422940458 ROSCANI GIORGIA]]> 2022-12-16 12:00:40 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2422940458 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2422950299 ADRIAS JHUSTINE]]> 2022-12-16 12:15:05 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2422950299 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2425839192 2022-12-20 14:28:48 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2425839192 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426078748 LINDA BERNARDINI]]> 2022-12-20 18:51:33 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426078748 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426113310 2022-12-20 19:35:56 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426113310 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426622740 2022-12-21 11:48:41 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426622740 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426743569 2022-12-21 14:44:06 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2426743569 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427281446 2022-12-22 07:23:41 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427281446 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427608242 2022-12-22 17:58:08 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427608242 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427608522 2022-12-22 17:58:48 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427608522 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427612053 2022-12-22 18:07:38 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427612053 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427687409 2022-12-22 21:56:24 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2427687409 sarafratini2 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429070265 2022-12-26 21:02:52 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429070265 katiarusso1 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429884761 2022-12-28 14:23:27 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429884761 katiarusso1 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429885664 2022-12-28 14:25:33 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429885664 katiarusso1 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429886369 2022-12-28 14:27:32 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2429886369 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2552878103 2023-04-13 09:48:34 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2552878103 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553129063 2023-04-13 12:55:41 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553129063 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553429235 Daniele D'Arrigo]]> 2023-04-13 16:25:50 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553429235 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553432574
An indicator is a substance that has the possibility to change colour in relation to the acidity or basicity of the substances with which it comes into contact.

TOOLS

Red cabbage

Distilled water sprayer

Becher from L50 HL

Wand to turn

500 HL beuta

Small funnels

Pipette

Filter paper

Test tube holder with 3 test tubes inside it 3 different elements

1. Beef broth.

2. Orange juices

3. Schweppes

Procedure

1. Cut a few slices of the red cabbage and place inside the beaker and put the distilled water inside.

2. Place in the stove to be boiled for about 20 min

3. Pour the solution obtained by filtering into a flax

4. Put 3 litmus papers in front of the test tubes

5. Take the liquid from the tubes with a pipette and put on top of the litmus paper RESULTS

After putting the liquid on top of the litmus paper we can see the following PH of the elements

The broth represents PH5 therefore a not so high acidity

Orange juice represents PH3 a higher acidity than broth

The schweppes represents a PH4 an acidity less acidic than orange juice but more acidic than broth

Finally we tried to put together the vinegar the colour and turned red so it represents a strong acidity


Zheng Elena]]> 2023-04-13 16:28:38 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2553432574 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2554429446 Gianfranco Giordano ]]> 2023-04-14 11:22:57 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2554429446 https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2597495394 Extraction of anthocyanins from red cabbage 20/10/22
In the last lesson we extracted anthocyanins from red cabbage in the laboratory.
We used the following tools:
-red cabbage
-Spray with distilled water
250ml beaker with turning wand -500ml flask
-funnel
-filter paper
-Tube holder with 3 tubes each containing oil, Schweppes and beef broth -pipette
1)We took the red cabbage, cut it then put it in the beaker, added some water and heated it for 20 minutes.
2)Let it cool and then pour it into the flask, and filter it through the filter paper and the funnel
3)Pour the liquid into the 100 ml Becker
4)We calculate the pH of the oil, vinegar, Schweppes and beef broth with the back sun maps: OIL-> 5 6
VINEGAR-> 2
SCHWEPPES-> 3
BROTH M. -> 8/9
5)Add the liquid obtained from the red cabbage in the OIL-> test tube does not join, keeps same color
VINEGAR-> red
SCHWEPPES-> pink
BROTH M.-> green
Conclusion,
with this experiment we have seen that the oil is NEUTRAL, the vinegar and the Schweppes are ACIDS and the broth is a BASIC substance.]]> 2023-05-19 11:00:37 UTC https://padlet.com/katiarusso1/dao02osdxt1yiar2/wish/2597495394