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If matose is made up of two alpha D-glucose units connected together by an alpha(1-4) linkage, how can it give a positive test as a reducing sugar?
completely neutralize 50.00 ml of a weak monoprotic acid, HA. when 32.64 ml of NaOH are added to another 50.00 ml of the acid, the pH reading was 4.80. Calculate Ka for the acid using the partial neutralization method.
What is the change in internal energy of the system, delta U. The force of gravity on a mass m is mg, where g is the constant acceleration of gravity (g=9.80 m/s^2).
a tank contains helium at 490 mmHg, nitrogen gas at 0.750 atm, and neon at 520 torr. what is the total pressure in atm?
A 4.40 g piece of solid CO2( dry ice) is allowed to vaporize(change to gas) in a ballon. The final volume of balloon is 1.00 L at 300L. What is the pressure of the gas?
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
analyze run-off water for the presence of a.) heavy metals; b.) BTX( Benzene-toluene-xylenes); and c.) PNA ( polynuclear aromatic compounds).
if it took 18.72 (+ and - 0.05) ml of the base to reach the equivalence point. what was the concentration of unknown acid? 2) what is the uncertainity associated with this determination?
Tums calcium carbonate reactswith stomach acid ( HCI) according to the reaction below. One tablet of tums contains 500.0 mg CaCO3. If one tablet of tums is addedto 20.0 mL 0.100M HCI, how many grams of CO2 gas are produced?
calculate mass of CCl 4 that formed if 1.5 moles of CH 4 react with 1.4 moles of Cl?
How many coulombs are required?
have the same melting point.How can you determine if they are the same without using any form of spectroscopy? Explain in details.
A zero-order reaction has a constant rate of 1.00×10-4 . If after 80.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration.
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