Ascorbic

Question: Why is DCPIP a good indicator for finding the concentration of ascorbic acid? Please help, I am doing coursework on the concentration of vitamin C (ascorbic acid) in tablets and need to know why DCPIP is a good indicator. I know it has a sharp colour change but why is a stronger reducing agent not used? Please Help!!

Answer: DCPIP can also be used as an indicator for Vitamin C. If vitamin C, which is a good reducing agent, is present, the blue dye, which turns pink in acid conditions, is reduced to a colorless compound by ascorbic acid. DCPIP (blue) + H+ ----------> DCPIPH (pink) DCPIPH (pink) + VitC ----------> DCPIPH2 (colorless) C6H8O6 + C12H7NCl2O2 ----------> C6H6O6 + C12H9NCl2O2 In a titration, when all the ascorbic acid in the solution has been used up, there will not be any electrons available to reduce the DCPIPH and the solution will remain pink due to the DCPIPH. The end point is a pink color that persists for 10 seconds or more. http://en.wikipedia.org/wiki/DCPIP

Question: What is the relationship between Ascorbic Acid and Capsaicin in hot (to mild) peppers? I and two of my lab partners have been looking at the different levels of vitamin C in three peppers: red bell, jalapeno, and habanero. We predicted that the amount of ascorbic acid would correlate pretty closely with the amount of capsaicin in the peppers. (We didn't measure the capsaicin content, though; we just compared our vitamin C figures to a list of Scoville Units in peppers.) Our predictions were almost completely opposite of our results. The red bell--the pepper lowest in Scoville Units (zero, to be exact!)--showed the highest amount of vitamin C. But our data may be skewed, making things even harder to figure out! According to a couple of (unscientific) online sources, the hotter the pepper, the higher the vitamin C content; hence, our original predictions. So, please, somebody help us!! Is the relationship between ascorbic acid and capsaicin a direct or an inverse correlation? And what is the cause of that correlation?

Answer: Red Sweet Bell Pepper, Fresh Serving Size: 1/2 cup sliced Calories: 12 Fat: 0 g Saturated Fat: <1 g Cholesterol: 0 mg Carbohydrate: 3 g Protein: <1 g Dietary Fiber: 1 g Sodium: 1 mg Vitamin A: green pepper 170 IU red pepper 1,440 IU Vitamin C: green pepper 37 mg red pepper: 87 mg Iron: <1 mg Carotenoids: green 268 mcg red: 1,146 Hot Chili Pepper, Fresh Serving Size: 1 pepper Calories: 18 Fat: <1 g Saturated Fat: 0 g Cholesterol: 0 mg Carbohydrate: 4 g Protein: 1 g Dietary Fiber: <1 g Sodium: 4 g Vitamin A: green pepper: 538 IU red pepper: 428 IU Vitamin C: 64 mg These are data I obtained for the nutritional value of 3 peppers. So it seems that hottness(capsaicin content) has little relationship to vitamin C content. Unless you are watching a pepper ripen. I can see the vitamin C content increasing as a pepper ripens as it is a plant nutrient/cofactor which would increase as the peppers ripen and is an anti-oxidant which would help protect them. The capsaicin content in peppers also increases as they ripen so there is a connection between the two, but only in one type of pepper. If you compare peppers across specias I believe there is/should be no connection.

Question: what are the new and latest updates about ascorbic acid? what are interesting facts about them? what are some trivias about ascorbic acid?

Answer: My research team discovered an enzyme where ascorbic acid is used at the cellular level, mono dehydro ascorbic acid transhydrogenase. We used fetal guinea pig for the study. I used rib cages as vitamin C is used in the connective tissue. I always recommend Vitamin C for colds , allergies, mouth sores, general resistance.

Question: What are other types of chemicals that relate to Ascorbic acid? My chemistry teacher asked us to bring with us a list of "chemicals" that were called this name that started with swi or swei. I have no clue what it is but if I see it I will be able to know. He said that one example of it was Ascorbic acid. Can anyone please help?? THANKS!!!!

Answer: Ascorbic acid is classified as reductone containing an enediol group. Definition "reductones": http://www.chemicool.com/definition/reductones.html Sorry, I did not find formula of enediolic group on an English site , but if you find "Struktur" on this site you see it as "Endiol": http://de.wikipedia.org/wiki/Ascorbinsäure

Question: what side effects occur on to a child if he is overdosed with Ascorbic Acid during childhood? Many journals say that artificial foods should be promoted to children in infancy but many artificial foods contain ascorbic acids and overdosing the child in infancy with Ascorbic acid can harm him .What are the symptoms?

Answer: Ascorbic acid is just the chemical name for Vitamin C. Vitamin C can't hurt a child. If he takes to much, he'll just excrete it out.

Question: Is it ok to take ferosulfate and ascorbic acid at the same time? Is it ok to take ferosulfate(Iron) and ascorbic acid at the same time? Im 20 years old and i have low hemoglobin so I take iron...

Answer: YES! The vitamin C improves the iron absorption. Best wishes and good luck.

Question: What is the chemical reaction between an amphetamine and ascorbic acid (vitamin C)? I have been asked what the products off this reaction are, to understand why amphetamine overdose is treated with vitamin C (According to a Whitten's Chemistry book) I already found the Lewis's structure for the ascorbic acid, but I don't know how to bond the two structures together

Answer: http://www.drugs.com/drug-interactions/amphetamine_d00803_ascorbic-acid_d00426.html http://www.ncbi.nlm.nih.gov/pubmed/3942882 http://grande.nal.usda.gov/ibids/index.php?mode2=detail&origin=ibids_references&therow=272544 i think this is enough

Question: How many moles of carbon, hydrogen, & oxygen are present in a 100g sample of ascorbic acid? Ascorbic acid (vitamin C) contains 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen by mass. Assume a 100 g sample of ascorbic acid. how many moles of carbon, hydrogen, and oxygen are present in a 100g sample of ascorbic acid?

Answer: 40.92 /100 * 100g = 40.92 grams C so 4.58g H and 54.50g 40.92 /12 = 3.41moles 4.58/1 = 4.58moles 54.5/16 = 3.41 molecular formula = C6H8O6 3.41 * 6 =20.46moles 4.58 * 8 = 36.64 moles 3.41 * 6 = 20.46 moles

Question: What is the difference between ascorbic acid and citric acid? and which one is worse on your health?

Answer: Both molecules are absolutely vital for health. Ascorbic acid is also called Vitamin C. It is chemically very similar to glucose. Citric Acid (also called citrate) is a two carbon molecule that functions at the center of energy metabolism in cells. Perhaps you have heard of the Citric Acid Cycle (aka the Krebs cycle). Best wishes and good luck.

Question: What causes the formation of gas bubbles during the titration of ascorbic acid with iodine? What is the reaction?

Answer: Ascorbic acid is C6H8O6 Iodine is I2 The following is the reaction: C6H8O6 (aq) + I2 (aq) -----> C6H6O6 (aq) + 2(H+) (aq) + 2I- (aq) Ascorbic acid reacts with iodine to form dehydroascorbic acid (C6H6O6) and the hydrogen and iodide ions. These can produce hydriodic acid (HI (aq)). This hydriodic acid, in the form of hydrogen iodide (HI) gas, can bubble off.

Question: How much Vit C (ascorbic acid) should I use in Homemade Dog Treats? I have found out that Ascorbic Acid aka Vitamin C can be used in homemade dog treats safely. I've also heard it acts as a preservative also. I was looking for a way to safely keep the treats fresher as long as possible. So can I really use it and if so how much per batch?

Answer: Dogs don't need any additional vitamin C; their metabolism manufactures it on its own, unlike in humans. Additional won't hurt, but just put in a little for preservative in the same ratio you would use for human food.

Question: If I take 6000mg of ascorbic acid vitamin C for 5 days will it term the pregnancy? I've heard it will and I need to know. Is it possible to have large amounts of ascorbic acid (vitamin C and it will term the early pregnancy??

Answer: No. 6000mg is not that much. Some people have taken 50,000mg a day for a number of consecutive days with no ill effects.

Question: Why do solutions of ascorbic acid go yellow over time? Is it something to do with the OH groups getting oxidised? Maybe the double bond breaking?

Answer: yep, nope

Question: What is the classification of Ascorbic Acid? I've got to do these drug facts for a nursing class and I can't find the answer to this. I found that on Wikepedia too. I'm looking for the drug classification. I don't have my books with me so I have to use the internet.

Answer: it is one of the water soluble vitamins. it is important to our body as one of our water soluble compartment's guard against the oxidizing agent's effect .it is important also in prophylaxis against Scurvy(bleeding gums disease) as it acts as a co-carboxylase in the hydroxylation reaction of proline and lysine amino acids to the hydroxy derivatives which are the important componants of the active collagen

Question: Does lemon juice contain any other acids besides citric acid and ascorbic acid? Orange is a fruit similar to lemon, but it contains malic acid and ascorbic acid as well.

Answer: i dont think that there are any other acids in lemon other than citric and ascorbic acid Hope it helps!!

Question: Using citric acid or ascorbic acid to clean dishwasher? I have read that the best way to clean a grimy dishwasher is using citric acid or ascorbic acid. My landlord installed a "new" dishwasher, but it was sitting in another condo for a long time unused, and clearly wasn't new. I want to use something that is safe (I've ran it with dishwashing liquid, and tried scrubbing it with a soapy cloth) but that will actually work. I can't find citric acid or ascorbic acid at the local pharmacy or grocery store. 1 -will these work best? and 2. where can I find them?

Answer: Just run it a few times empty. If your water is hot enough you will be safe.