WebA sample of Vitamin C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample? WebCopper wire is composed of many, many atoms of Cu. (credit: Emilian Robert Vicol) Solution. ... Vitamin C is a covalent compound with the molecular formula C_6H_8O_6. The recommended daily dietary allowance of vitamin C for children aged 4–8 years is 1.42 × 10 −4 mol. What is the mass of this allowance in grams?
8.6: Vitamins and Minerals as Antioxidants - Medicine LibreTexts
WebAug 13, 2024 · The key vitamins and their functions are found in Tables 18.9. 1 and 18.9. 2. Vitamins C and E, as well as the provitamin β-carotene can act as antioxidants in the body. Antioxidants prevent damage from free radicals, which are molecules that are highly reactive because they have unpaired electrons. Web(d) What is the mass percentage of carbon in Vitamin C molecules? a) Rubidium has two naturally occurring isotopes. The average atomic mass of Rb is 85.47 u. If 72.15% of Rb is found as Rb-85 (84.91 u), what is the mass of the other isotope? can i watch barbie toys
3.1 Formula Mass and the Mole Concept - OpenStax
WebJan 1, 2016 · If you divide all three numbers by 2 you will get For C: 6 2 = 3 For H: 8 2 = 4 … WebOxygen atoms in vitamin C are largely responsible for the molecule's antioxidant properties, while nitrogen atoms in the B-vitamins allow them to participate in regulating metabolism. Some vitamins, including vitamin B-6, contain both nitrogen and oxygen. Other Elements. WebAscorbic Acid belongs to the monosaccharide family and has a chemical formula C 6 H 8 O 6. Vitamin C (ascorbic acid) is a key vitamin for animals and plants. It is a vitamin C and should be obtained in the diet as it cannot … can i watch bbc