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How To Make A Glucose Solution

How To Prepare 500 Ml Of 0.025 M Of Glucose Solution? | Physics Forums

1. The problem statement, all variables and given/known data: I am using a virtual chemistry laboratory and the directions for the first lab experiment says to prepare 500 mL of 0.025 M of glucose solution by diluting the 1 M glucose solution. (I am re-posting this question due to the fact that the previous one was deleted because it wasn't placed in the appropriate forum.) Prepare: 500 mL of 0.025 M of glucose solution by diluting the 1 M(1 Mole) of glucose solution with distilled water. I am not sure what to do here and I don't know what I am supposed to multiply. I tried adding the diluted water to it, but it said that it would overflow because I had added 400 mL of the diluted water. It said to indicate in the report, which solutions were mixed together and the amounts of each, but I am not sure how to mix them. I take it the M stands for Moles? And mL stands for mililiters. Do I divide 500 by 1000mL first? Correct. To make 500 mL of a 0.025 M solution of glucose, you would take 12.5 mL of a 1 M solution of glucose, and add water to that until the final volume is 500 mL. An easier way remember this approach is the formula M1V1 = M2V2. In this case, the calculation would be 1M * V1 = 0.025M * 500mL. If you solve for V1 you would get 12.5 mL (essentially the same calculations as you presented above, just placed into one single formula). Alternatively, you can calculate the "fold dilution." 1 M / 0.025 M = 40, so you are performing a 40-fold dilution. That means you would take 500 mL/40 = 12.5 mL of 1M glucose and dilute to 500 mL. Correct. To make 500 mL of a 0.025 M solution of glucose, you would take 12.5 mL of a 1 M solution of glucose, and add water to that until the final volume is 500 mL. An easier way remember this approach is the formula M1V1 = M2V2. In this Continue reading >>

Oral Rehydration Solutions Ors Made At Home - Rehydration Project

Facts for Life Diarrhoea ORS Solution: A special drink for diarrhoea A child with diarrhoea should receive oral rehydration salts (ORS) solution and a daily zinc supplement for 1014 days. Diarrhoea medicines are generally ineffective and can be harmful. Made at home: ORS Solution A special drink for diarrhoea Give the child a drink made with 6 level teaspoons of sugar and 1/2 level teaspoon of salt dissolved in 1 litre of clean water. Be very careful to mix the correct amounts. Too much sugar can make the diarrhoea worse. Too much salt can be extremely harmful to the child. Making the mixture a little too diluted (with more than 1 litre of clean water) is not harmful. Diarrhoea usually cures itself in three to four days with rehydration (drinking a lot of liquids). The real danger is the loss of liquid and nutrients from the child's body, which can cause dehydration and malnutrition. A child with diarrhoea should never be given any tablets, antibiotics or other medicines unless prescribed by a trained health worker. The best treatment for diarrhoea is to (1) drink lots of liquids and oral rehydration salts (ORS), properly mixed with clean water from a safe source, and (2) take zinc tablets or syrup for 1014 days. ORS (oral rehydration salts) is a special combination of dry salts that is mixed with safe water. It can help replace the fluids lost due to diarrhoea. When a child has three or more loose stools in a day, begin to give ORS. In addition, for 1014 days, give children over 6 months of age 20 milligrams of zinc per day (tablet or syrup); give children under 6 months of age 10 milligrams per day (tablet or syrup). In most countries, ORS packets are available from health centres, pharmacies, markets and shops. Put the contents of the ORS packet in a clean container Continue reading >>

Numerical: How Will You Make A 0.35 M Glucose Solution? Also, Prepare A 0.12 M Solution Of Glucose From The Above Stock.

Numerical: How will you make a 0.35 M glucose solution? Also, prepare a 0.12 M solution of glucose from the above stock. Use glucose's molar mass and the target solution's molarity . To make calculations easier, you can always assume your stock solution to have a volume of 1.0 L. Since the molarity of the stock solution must be equal to 0.35 M, the sample must contain 0.35 moles of glucose. #1.0cancel("L") * "0.35 moles"/(1cancel("L")) = "0.35 moles"# Determine how many grams of glucose would contain this many moles by using the compound's molar mass #0.35cancel("moles") * "180.16 g"/(1cancel("mole")) = "63.06 g" = color(green)("63 g")# So, to prepare a 0.35-M, 1.0-L stock solution of glucose you must dissolve 63 g of glucose in enough water to make the total volume equal to one liter. To prepare a 0.12 M solution from the stock solution, you need to determine exactly what volume of the stock solution would contain the same number of moles of glucose as the stock solution. This is where the equation for dilution calculations comes in handy. Continue reading >>

Baking - How Do I Make Liquid Glucose From Powdered Glucose - Seasoned Advice

How do I make liquid glucose from powdered glucose I recently decided to make something that required liquid glucose, 140g of it. No problem in general, but for some reason none of my usual suppliers had stock (even tried pharmacies). The closest I found was glucose powder. Unfortunately, having no clue how to "re-hydrate" the powder to a liquid form, I experimented. :-) I can safely say that 100g glucose powder was way to much as a substitute for 140g of liquid glucose (which I expected). However, I was wondering if any of you had a convenient method of turning powdered glucose into the wonderfully thick and sticky liquid glucose, in case I ever find myself in that position. Chemically speaking, saying "liquid glucose" is inaccurate. To explain, at normal temperatures, glucose is a solid; depending on the isomer/chiral form , melts at ~150C, and is a liquid above that temperature when not under pressure. ...What you want is a solution (syrup) with water. Glucose also dissolves in nonpolar solvents for other 'liquid' solutions. zanlok Nov 30 '12 at 18:50 Well, the answer is "it depends." This is pretty much the same as asking, "I have sugar, and I want sugar syrup. How much water do I add?" It depends on the concentration you're looking for. If you're looking for a 24% solution, it's 24 grams of glucose in 76 grams of water. A 30% solution is 30 grams of glucose in 70 grams of water, etc, etc. Unless you have some chemical reason to avoid dextrin, you can just substitute corn syrup. The only reason they use glucose in Europe is because they don't have our superabundance of corn. I live in South Africa, and unfortunately corn syrup is not generally available. We base most of our syrups and sugars off sugar cane. brianb Aug 25 '11 at 17:11 Sorry, forgot to ask. What is c Continue reading >>

How To Prepare A Glucose Solution

By Claire Gillespie; Updated April 26, 2018 What you refer to as blood sugar is actually glucose, a simple sugar that comes from the carbohydrates you eat and that converts to an important energy source for the body. In powdered form, glucose is combined with other sugars and added to food to make it sweeter, or used as a nutritional supplement for athletes. It's easy to prepare a glucose solution at home to use for a number of experiments. When a known quantity of glucose is mixed with a known quantity of water, it is known as a standard glucose solution. Scientists use standard glucose solutions to measure the concentration of glucose in an unknown solution. Glucose solutions are also used in a number of research experiments and to measure blood glucose levels in people with diabetes or suspected diabetes. These tests measure whether the body can cope with large amounts of sugar. If the blood sugar recorded in the test is higher than a certain point, the cells in the body may not be absorbing enough sugar, which may be caused by diabetes. Work out the Total Volume and Percentage Glucose Solution To work out how much glucose you need to make a solution of a given percent, multiply (mass/volume) by volume, bearing in mind that 1 g in 100 ml is a 1 percent solution. For this example, if you want to make a total solution of 500 ml of 20 percent glucose, multiply (20/100) by 500. The answer is 100, so you need 100 g of powdered glucose. (If you were making a 10 percent glucose solution, the calculation is (10/100) x 500, and the answer is 50 g). Pour 250 ml of Deionized Water Into a 500 ml Beaker Insert a stir bar and sit the beaker on a hot plate. Turn on the heat and stir functions. Let the water heat up, but don't bring it to boiling point, as this will stop the glucos Continue reading >>

Oral Rehydration Solutions Ors Made At Home - Rehydration Project

Facts for Life Diarrhoea ORS Solution: A special drink for diarrhoea A child with diarrhoea should receive oral rehydration salts (ORS) solution and a daily zinc supplement for 1014 days. Diarrhoea medicines are generally ineffective and can be harmful. Made at home: ORS Solution A special drink for diarrhoea Give the child a drink made with 6 level teaspoons of sugar and 1/2 level teaspoon of salt dissolved in 1 litre of clean water. Be very careful to mix the correct amounts. Too much sugar can make the diarrhoea worse. Too much salt can be extremely harmful to the child. Making the mixture a little too diluted (with more than 1 litre of clean water) is not harmful. Diarrhoea usually cures itself in three to four days with rehydration (drinking a lot of liquids). The real danger is the loss of liquid and nutrients from the child's body, which can cause dehydration and malnutrition. A child with diarrhoea should never be given any tablets, antibiotics or other medicines unless prescribed by a trained health worker. The best treatment for diarrhoea is to (1) drink lots of liquids and oral rehydration salts (ORS), properly mixed with clean water from a safe source, and (2) take zinc tablets or syrup for 1014 days. ORS (oral rehydration salts) is a special combination of dry salts that is mixed with safe water. It can help replace the fluids lost due to diarrhoea. When a child has three or more loose stools in a day, begin to give ORS. In addition, for 1014 days, give children over 6 months of age 20 milligrams of zinc per day (tablet or syrup); give children under 6 months of age 10 milligrams per day (tablet or syrup). In most countries, ORS packets are available from health centres, pharmacies, markets and shops. Put the contents of the ORS packet in a clean container Continue reading >>

Infant Feeding: Five Per Cent Glucose Solution

Infant feeding: five per cent glucose solution Infant feeding: five per cent glucose solution Five per cent glucose solution is no longer commercially available. This guideline explains how a solution can be made up on the ward by adding dextrose monohydrate (eg Nutrivit glucose powder) to a 90ml bottle of sterile water. Prior to gastrointestinal surgery or investigation, it is often neccessary to give children only clear fluidsfor 24 hours. In this context, any fluid except milk or milk products can be given. It is usual to give older children fruit squash or carbonated drinks. Babies under the age of one are given a 5% glucose solution to maintain their blood sugar level. This procedure should be carried out as an aseptic non-touch technique in a clean area of the ward; the ward treatment room should be used when available ( Rationale 1 ). This procedure should be regarded as the administration of an oral medicine and can be single-checked and carried out by a registered nurse, as per the Great Ormond Street Hospital (GOSH) Administration of Medicines policy. If the solution is prepared by a student nurse or a healthcare assistant, it must be checked by a registered nurse prior to administration. Glucose powder should be stored in a locked medicine cabinet and its expiry date must be checked prior to every solution preparation. ( Rationale 2 ) Check 90ml bottle of sterile water has not been opened. Seal should be intact; reject the bottle if the safety button is raised. ( Rationale 3 ) Ensure the water is within the expiry date. ( Rationale 4 ) Open the bottle of water and add one level yellow scoop of glucose powder - scoop available from ward dietitian. Reseal bottle and shake vigorously for 30 seconds. ( Rationale 5 ) Place a patient identification sticker on bott Continue reading >>

50 Mm Glucose - 2011.igem.org

Glucose has several forms, and here we are using D-glucose [ [1] ], also known as anhydrous dextrose. It has a stereoisomer called L-glucose - perhaps you have had organic chemistry, in which case the concept of right and left-handed molecules may still be accessible in your brain's long-term memory.BTW, the D-glucose our team used was donated - it had been collecting dust in a colleague's cabinet. D-Glucose is C_6H_{12}O_6, with a molar mass of 180.16 gr/mole. To make 1M d-glucose stock solution one uses 1 liter distilled water180.16 grams anhydrous dextrose Since we did not need an entire liter of the 1M glucose stock, the following recipe sufficed: 50 ml distilled water(50 ml/1000 ml)(180.16 gr) = 9.0 gr anhydrous dextrose A beaker, magnetic stir bar, and magnetic stir plate are handy. No heat is needed for this sugar-water to become a 1M solution, but a little warmth won't hurt. The rapid dissolution of the d-glucose at this concentration makes it unlikely that you'd have it on the plate long enough for it to caramelize. In other words, it's hard to screw up. Using 1M glucose stock to achieve a 50mM final concentration of glucose in 100ml of Solution I Now, we must add some of the 1M glucose stock to make the final concentration 50mM in 100ml of Solution I. How much should we add? Use the formula C1 * V1 = C2 * V2 , where '*' represents the multiplication operator C1 is the stock solution's concentration - (1M for this example), V1 is the unknown quantity that we wish to discover,C2 is the final concentration of glucose in Solution I being prepared - (0.050M in this example), andV2 is the final volume of the solution being prepared - in this case, 100ml. Important Note: The units of measure one selects for volume and concentration must be the same on both sides of Continue reading >>

What Is A Standard Glucose Solution?

By Robin Wasserman ; Updated August 14, 2017 A standard solution of glucose contains a known quantity of glucose in a known quantity of water. Scientists use standard glucose solutions to measure the concentration of a glucose in an unknown solution. These tests are helpful in many research experiments but also find practical medical application when testing patients for diabetes. Glucose is a 6-carbon sugar molecule, the most common carbohydrate in your body. People often refer to glucose as "blood sugar" as it circulates throughout your blood at a concentration of about 65 to 110 mg/mL. Classified as a monosaccharide, an aldose, a hexose and a reducing sugar, glucose chemically reduces other compounds in oxidation/reduction reactions by readily donating electrons. Glucose is also known as dextrose or D-glucose, due to its dextrorotatory property, the ability of glucose solutions to rotate plane polarized light to the right. Standard solutions in general contain a known amount of substance dissolved in a known quantity of another substance. Usually, a standard glucose solution refers to a 1-percent glucose solution. Preparing a 1-percent standard glucose solution involves dissolving 1 g of glucose in 100 ml of water. Glucose standard solutions are used to create calibration curves against which unknown solutions are measured. These curves then help determine the concentration of the unknown solution. Reactions of glucose with potassium permanganate generate calibration curves. Glucose readily donates electrons to permanganate ions in an oxidation-reduction reaction. The rate of this oxidation-reduction reaction depends on the concentration of glucose in solution. Solutions of permanganate ions have a distinct pinkish-purple color. When this solution is reduced, it bec Continue reading >>