Vitamin C Testing

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Find out how much Vitamin C is in your favorite fruit juice using a redox indicator.
This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - elearning.flinn...
ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting.
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Опубликовано:

14 окт 2024

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Комментарии : 63

@AAA-pr1oz 4 года назад

I can really save your 11 min What u have to do is to add any food solution or juice to dichloro 0.5 g and observe how many drops it would need dichloro to be colourless it that means if dichloro is colourless after adding juice or food solution it indicates that the food solution/juice contains vitamin C

@24bit192khtz 4 года назад

I want to save 11mins of your time. Vitamin C 40 drops, orange juice 50 drops, Gatorate 100+ drops, pineapple juice 55 drops.. Vitamin C is the winner

@kirtisaraswat2800 4 года назад

I kindly request you to please add more such videos for different vitamins and minerals. Thank you so much for this explanation for testing vitamin c in different juices.

@srikarganesh8 5 лет назад

Thank you Professor, this video is really helpful. I kindly request you to make a video on "Potassium Test" too.

@dustin910721 3 года назад

@Pugz Probably I am waiting too XD

@adamspeiser6449 7 лет назад

He puts in ten, then puts in ten more which equals ten? These errors are the reason we obtain inaccurate results in our time, but I digress to say this was a pretty neat experiment overall and thanks for the help. Not trying to be mean by the way, but got a bit confusing.

@kieranharduwar5541 9 лет назад

where is the documentation he talked about in the video

@azeemiftikhar6084 7 лет назад

Kieran Harduwar the table

@simp7042 4 года назад

I bit of a counting problem but amazing demenstration

@luisamedina1 4 года назад

Do you have a DIY video about liposmal vitamin C? Thanks a lot!

@StrawberryGates 11 лет назад

serious counting problems...

@faroukelgohary7825 7 лет назад

StrawberryGates totally ahhahahaha *adds 10 drops then adds another 10 drops and says that we've added 10 drops in total hahahahah

@azeemiftikhar6084 7 лет назад

StrawberryGates well that's probably why he teaches Biochemistry and not maths 😂

@karnage9685 5 лет назад

ikr

@toxichammertoe8696 4 года назад

I noticed

@zes3813 4 года назад

wrg

@Aditi_Surana 2 года назад

A humble request to you , to make a video with 1 cm ˆ3 of DCPIP measurement

@itss2856 11 лет назад

i love his accent

@sumarianson 4 года назад

Should have done freshly squeezed orange and lemon juices

@YouTooCanDo 6 лет назад

Why showing the Dole juice brand???

@miladkhan4266 7 лет назад

Answer me someone please vitamin C can clean the black dollars ? Black notes?

@Ninasee19 6 лет назад

I wish u tried it with bell pepper since it has more vitamin c content

@commandernoodles2367 5 лет назад

How do we test vitamin C tablets and capsules? Or other vitamins and minerals.....

@antoniofernandez3122 5 лет назад

Crush the tablets and dissolve them in distilled water, then titrate this solution. Make sure you note the dilution factor as this will be important for your calculations.

@palalalalalala2021 7 лет назад

Did he say 0.02 5% solution of indophenol?

@drjonblocks7332 6 лет назад

can you help me how to do this in a quanititive I want to know how does the changing the orange juice affect how much vitamin c there is in milliters.

@antoniofernandez3122 5 лет назад

Use a burette

@thomasjosephaguirre805 4 года назад

what is the name of that dark solution again?

@admuro6249 6 лет назад

He should've used less ml. of indophenol solution. He would've saved a lot of drops!!

@drjonblocks7332 6 лет назад

Adolfo Muro can you help me how to do this in a quanititive I want to know how does the changing the orange juice affect how much vitamin c there is in milliters.

@verticalkoala1264 2 месяца назад

Back when there were only 113 elements

@bewongelabera2611 4 года назад

I like it and add more testing in other food

@phaseprojects2375 5 лет назад

That'll be $40 please sir... Ok.. 10, 20, 30 $40 (hands over $60)

@abdsallamsallamonty3064 4 года назад

thanky you vary much

@akisanyatimothy9264 9 лет назад

cool procedure

@azeemiftikhar6084 7 лет назад

akisanya timothy its the standard procedure

@mrsnoop1820 5 лет назад

what's the melting point of vitamin c

@losserrano9367 4 года назад

Next time test actual pineapple juice not can synthetic pineapple juice with no benefits to it

@SqUiDDiAmOnD 11 лет назад

Where can i purchase indophenol?

@azeemiftikhar6084 7 лет назад

Chaotic- Rush- its DCPIP relatively easy to find

@allroundedwarriors9885 5 лет назад

A nice video

@nisreenkalai8814 4 года назад

how do you do this with solid foods

@OmarHassan-j9v 2 месяца назад

Could you find the answer?

@스테이크들 8 лет назад

is it indophenol?

@azeemiftikhar6084 7 лет назад

이승현 its DCPIP

@sergeymashkov1161 5 лет назад

test Emergen-C packets

@nouranzoelkaaid4028 5 лет назад

Give more totals

@karlburton4181 8 лет назад

can you just use iodine

@karlburton4181 8 лет назад

+LargeVirus vitimin c turns iodine clear could you explain why you can't do the same to test it

@karlburton4181 8 лет назад

+LargeVirus ok thankyou I test the validity of my iodine by adding it to vitamin c just thought the reverse would be valid thankyou for reply ragards Karl

@karlburton4181 8 лет назад

+LargeVirus thankyou I'll look that up

@azeemiftikhar6084 7 лет назад

Karl Burton iodine goes through a variety of color changes when its reduced by ascorbic acid (Vitamin C) and therefore isn't the best option