Glucose molecular formula

Carbohydrates may be divided into monosaccharides, disaccharides and polysaccharides. The monosaccharides under certain conditions react as polyhydroxy-aldehydes or polyhydroxy-ketones two important representatives are glucose CjHjjO (an aldose) and fructose (laevulose) CgHuO, (a ketose). Upon hydrolysis di- and polysaccharides 3deld ultimately monosaccharides. Common disaccharides are sucrose, lactose and maltose (all of molecular formula C,2H2. 0,), whilst starch, dextrin and cellulose, (CjHjoOj), in which n > 4, are typical polysaccharides. 

Phlonzm is obtained from the root bark of apple pear cherry and plum trees It has the molecular formula C21H24O10 and yields a compound A and D glucose on hydrolysis in the pres ence of emulsin When phlorizin is treated with excess methyl iodide in the presence of potassium carbonate and then subjected to acid catalyzed hydrolysis a compound B is obtained Deduce the structure of phlorizin from this information... 

Atoms combine in definite proportions to give molecules. For example, natural gas is mostly composed of methane, a substance in which four hydrogen atoms (H) are combined with one carbon (C) the molecular formula is written as CH4. Similarly, water, ammonia, ethanol, and glucose have... 

The word carbohydrate derives historically from the fact that glucose, the first simple carbohydrate to be obtained pure, has the molecular formula C6H,206 and was originally thought to be a "hydrate of carbon, C6(Tl20)6." This view was soon abandoned, but the name persisted. Today, the term carbohydrate is used to refer loosely to the broad class of polyhydroxvlated aldehydes and ketones commonly called sugars. Glucose, also known as dextrose in medical work, is the most familiar example. 

In dilute acidic solution, sucrose (Ci2H22Ou) decomposes to glucose and fructose, both with molecular formula C6Hi2Ofi. The following data are obtained for the decomposition of sucrose. 

Write a chemical equation, using molecular formulas, for the reaction of sucrose with water to form glucose and fructose. 

Mannose has the same molecular formula as glucose and the same geometry except at carbon-2, where the H and OH groups are interchanged. Draw the structures of a- and /3-mannose. 

Glucose, a sugar simpler than sucrose, has a molecular weight of 180 and empirical formula CH20. What is its molecular formula ... 

This is a very widely available polymer, since it is the main component of the cell walls of all plants. It is a carbohydrate of molecular formula (C5H q05), where n runs to thousands. The cellulose monomer is D-glucose, and the cellulose molecules are built up from this substance, effectively by condensation and removal of the elements of water. 

Aldose-ketose isomerism Fructose has the same molecular formula as glucose but differs in its structural formula, since there is a potential keto group in position 2, the anomeric carbon of fmctose (Figures 13 and 13-7), whereas there is a potential aldehyde group in position 1, the anomeric carbon of glucose (Figures 13-2 and 13-6). 

Now open a third smaller window and load the meta-graphics file D NMRDATA GLUCOSE GHJCOSE.WMF containing the molecular formula of peracetylated (J-D-glucose. 

Cydodextrin CAS Registry Number Molecular formula Number of glucose units External Internal Aqueous solubility, M... 

The name carbohydrate dates back to a time when it was thought that all of these molecules were hydrates of carbon. For example the molecular formula for glucose is C6H1206, or six carbons plus six water molecules (H20). While these molecules make up the largest component of most foods, especially when calculated on a dry basis, their analysis was often avoided. For example, proximate analysis of food frequently involved analysis for moisture, fat, ash, and protein with the remaining portion considered carbohydrate of one form or another. 

Glucose, or blood sugar, has the molecular formula C6H1206. What is the empirical formula, and what is the percent composition of glucose ... 

The percent composition of glucose can be calculated either from the molecular formula (CgH Og) or from the empirical formula (CH20). Using the molecular formula, for instance, the C H 0 mole ratio of 6 12 6 can be converted into a mass ratio by assuming that we have 1 mol of compound and carrying out mole-to-gram conversions ... 

Sucrose (table sugar) reacts with water in acidic solution to give glucose and fructose, two simpler sugars that have the same molecular formulas but different structures. 

Is glucose an ionic or molecular compound The molecular formula of glucose is C H O. . 

Molecular formula The chemical formula that shows the actual number of atoms of each element present in a molecule e.g., the molecular formula of glucose is C6H1206. 

Through the use of chemical symbols and numerical subscripts, the formula of a compound can be written. The simplest formula that may be written is the empirical formula. In this formula, the subscripts are in the form of the simplest whole number ratio of the atoms in a molecule or of the ions in a formula unit. The molecular formula, however, represents the actual number of atoms in a molecule. For example, although CH20 represents the empirical formula of the sugar, glucose, C6H1206, represents the molecular formula. For water, H20, and carbon dioxide, C02, the empirical and the molecular formulas are the same. Ionic compounds are generally written as empirical formulas only for example, common table salt is NaCl. 

The number of atoms of each element in one molecule of a compound. The empirical formula simply gives the ratios of atoms of the different elements. For example, the molecular formula of glucose is CgH Og. Its empirical formula is CH2O. Neither the molecular formula nor the empirical formula gives structural information, (p. 21)... 

Glucose, fructose, galactose, mannose, and sorbose all have the empirical formula CH2O since they all have the same molecular formula, CgH Oe. 

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