Sugar Definition and 77 Threads

Thank you for any help that you can give me. I am very bad at differential equations and this one is really stumping me. Homework Statement A tank contains 2740 L of pure water. A solution that contains 0.05 kg of sugar per liter enters a tank at the rate 3 L/min The solution is mixed and...

If I were to grab a bag of sugar and say this weighs 1KG. What do I actually mean? KG is the unit for mass, not weight. What is the actual weight of the bag of sugar? (Assuming I'm on earth) Would it be 9.81N? This has been running through my mind recently, I want to try and put the common...

Excellent - froot loops are now good for you (according to their makers) Worried that the government food health labelling is a bit of downer, "you can't eat this, you can't eat that" they have decided to launch their own positive labelling. “Froot Loops is an excellent source of many...

hi, this is the first time i learn about viscosity, but I don't know where to start with this question: At 18.5°C, the viscosity of 1 wt% aqueous sugar solution is 1.025 times higher than the viscosity of pure water. At the same temperature, the diffusion coefficient of the sugar molecules is...

Hi, I am new to building large candy rockets, and I have a target of building a candy rocket that can reach an altitude of over 40,000ft. I am mostly concerned with the safety when casting such propellants. I am looking at casting over 200 pounds of propellant. Any one got any advice. I have...

The sugar concentration in a solution can be measured conveniently by using the optical activity of sugar nad other asymmetric molecules. In general, an optically active molecule like sugar will rotate the plane of polarization through an angle that is proportional to the thickness of the sample...

Hi all, I'm currently working on a lab on thermal physics, and I'm investigating whether adding different amounts of sugar is able to maintain the temperature of a cup of coffee, i.e. keep the coffee hot. I have collected my results, and it turns out that more sugar keeps the coffee hot...

I have a container for sugar at home which always has ants crawling in it all the time. I don't know how they get into the sealed container but they always manage to get in. Does anyone know of a way of getting rid of the ants permanently, apart from tracking down their habitat and...

Does anyone know of a simple, convenient test that will detect either sugar or aspartame? I'm a diabetic who likes his cola. I think the local McD's often forgets to serve up Diet cola when I ask for it - and I'd like to be sure before downing 20oz. of sugar water.

So what does it take for bacteria to find something tasty?

Hi, My chem teacher in high school did a demo 2-3 years ago, which I know involved sulfuric acid and either glucose or sucrose. I believe it was an acid-catalysed reaction which demonstrated the instant release of the energy stored in the sugar as opposed to conversion to ATP. Does anyone...

If I haven't eaten for a while (~14 hours) I start to feel hot and sweat, my hands shake a little bit, am more irritable, and generally feel bad. Do I have blood sugar problems? Is this normal?

Is it possible to make fuel cells that run of ethanol or even sugar? :confused: Is it a good idea? Why/Why not?

A spoonful of sugar is dissolving in hot water. The initial mass of the sugar was 7 grams and 5 minutes later the mass present had halved. The mass of sugar, S grams, at time t minutes after it was placed in the hot water can be modeled by S(t) = S0e^−kt, t ≥ 0. b Find the exact value of k...

Hi, I was given a bonus question, but I really can't find the physics reason behind it. The question was: Why do sugar particles, when sifting rigorously deflect? and we were given a hint - similar to hair tangles.. Can somebody please help me? Thank you.

http://www.channelregister.co.uk/2005/06/23/whos_your_sugar_daddy/ Opera What do you guys think about this article?

In a Potassium Chlorate (a strong) oxider and sugar is mixed with sulfuric acid a fire will break out. I understand that a acid-strong oxdizing reagent is exothermic reaction but why the sugar required.

Fructose is a reducing sugar, and the ketone acts as a reducing centre, which reduces Cu2+ --> Cu+. Therefore fructose itself becomes oxidised. However, how can a ketone group be oxidised? I thought: aldehyde becomes oxidised to carboxylic acid ketone: cannot be oxidised.

quick help! Hi I need help with two quick questions... thanks in advance... With the same type of agitation and at the same temperature, why would sugar disolve in water much faster then salt does? discuss the idea that the standard of living in a society might be measured in units...

So recently I have been eating bland foods a lot. Whole wheat + peanut butter + water mostly, which is not bad. But I get... sugar cravings. Like now, when I have had no fruit or sugary drink for a few days, I crave sugar--iced tea, lemons, some kind of fruit. Wonder why. Surely there isn't...

Are white and brown sugar chemically the same thing? Would one of them be easier for yeast to break down and turn into alcohol?

Hi we did a lab today for testing compounds in foods... So basically the only way to detect if a lipid is present is by transparency? Like we used a paper towel, we added a few drops of the substance to the paper towel and then rubbed it today, if it was transparent it tested positive for...

I read in a magazine the other day about a problem... You have a cup of tea. You start clicking with your tea-spoon on the cup and you put in som sugar. The sound of the clickings will change. Why? I guess that the sugar changes the density of tea, changing the speed of the soundwaves...

Does anyone know if confectionary sugar, is the same thing as regular sugar (ie. sucrose C12H11O11)? What about the chemical compostion of sugar substitutes, like 'Equal' or 'Sweet and Low'?

I'm addited to Orbit gum, and they tout it as being good for your teeth. It has no sugar (in the glucose/sucrose sense), but it has "sugar alcohols" listed as the only ingredient of any import. So, are "sugar alcohols" somehow magically sweet and yet not bad for your teeth, or by chewing Orbit...

Is fructose a less caloric sweetener than sucrose or dextrose?

I've just recently read an article, about sugar molecules that form inside of cells, that was really shocking. Apparently, current research has discovered that some of these sugar molecules are many time more complex than DNA! What do you guys know about this? What is the purpose of these...