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Hemicellulose is a plant polysaccharide. It is a heteropolymer, meaning it contains more than one monosaccharide. D-xylose residues are present in the greatest amount and are attached by ß (1->4) glycosidic bonds. Draw the structure of a disaccharide consisting of D-xylose
3.8 g of a hydrocarbon fuel is burned in a calorimeter that contains 234 grams of water initially at 25.00 ? C. After the combustion, the temperature is 26.55 ? C
When 0.0200 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.20Ã-10-3 M. Calculate Keq for the reaction at this temperature.
The molar enthalpy of fusion of solid silicon is 46.4 kJ mol-1, and the molar entropy of fusion is 27.6 J K-1 mol-1.
A balloon has a volume of 3.00 liters and a temperature of 56.0 celcius.if the volume increases to 7.00 liters, what is the new temperature in celcius?
What is the percent yield of a reaction in which 260. g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 127 g HCl?
During the discharge of an alkaline battery, 4.90of Zn are consumed at the anode of the battery. What mass of MnO2 is reduced at the cathode during this discharge?
Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope?
if the syinge colume had been incorrectly read, giving a calculated system volume of 25.6 mL, what would have been the percent error in the calculated value of R?
How many grams of aluminum must be used to produce 5.00 grams of hydrogen gas?
Determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1 degree Celsius to 40.3 degree Celsius?
Write the oxidation reaction for L-Ribose and α-D-Lyxose (use the Benedict' reagent as an oxidizing agent). Write the reduction rection (hydrogenation) for D-Idose and β-D-Psicoe.
what is the molar concentrations for those two. The solution volumes are additive. Thank you so much I can't figure this out and I've been looking at it for 2 hours. I need it for my lab report.
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