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TESTS ON CARBOHYDRATES
1. Define the following and give a brief explanation of each one of them; Carbohydrates, Monosaccharides, Oligosaccharides and Polysaccharides.
2. There are two main classes of monosaccharides,i,e aldoses and ketoses. Briefly distinguish between these two classes.
3. Draw the chemical structure of glucose and fructose .State which one is an example of aldoses and ketones.
CO(g)+Cl2----COCl2(g) Kc=255 at 1000 K If the reaction mixture contains a CO concentration of 0.1500 M and a Cl2 concentration of 0.175 M at 1000K. What are the concetnrations of each substance when equilibrium is reached
Write down and explain the feature(s) in the Schrödinger equation that lead to the "electron correlation problem". Next, explain the approximation(s) that lead to the introduction of effective nuclear charge (Z Effective). Be sure to define effect..
Consider a pipe with a length of 43.5 cm. If the temperature of the air is 19.5 oC and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe? Post your answer in hertz (Hz) and with 3 signifi..
The concentration of hydroxylamine in a solution is 0.025M. What is the concentration of hydroxide ion in the solution
Write the lewis dot structures and all possible resonance structures for N2O (structure: NNO) and circle the most stable resonance strucute
Determine the partial pressure. Calculate the total pressure and volume in liters at STP of Nitrogen, Helium and Neon mixture.
a sulfuric acid solution containing 571.6 g of h2so4 per liter of solution has a density of 1.329 ggtcm3. calculate a
A fossil that formed with 10,000 atoms of a radioactive parent element now contains only 1,250 atoms of that element. If the half-life of the element was 1,000,000 y, how old is the fossil
Does a baseball in flight possess wave properties. If so, why can we not measure its wave properties
compound x has the formula c8h14.x reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst
Give two examples for each category of the following Redox reactions. Show molecular equations if the reaction does not occur in aqueous solution, and net ionic equations if the reaction occur in aqueous solution.
An 0.758 mol sample of neon gas at a temperature of 18.0 oC is found to occupy a volume of 24.0 liters. The pressure of this gas sample is. answer in mm Hg please.
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