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If .43g of aluminum foil was dissolved in sufficient 3M KOH solution, and the solution was acidified with 4M H2SO4, what was the theoretical yield of KAl(SO4)2 * 12H2O
how much energy is released when 89 grams of water vapor (steam) is cooled from 503 K to 354 K?
unknown molecular (nonelectrolyte) compound in 102.0 g of water was found to have a freezing point of -1.8 degrees C. Calculate the molar mass of the unknown compound.
Consult your lecture or lab text and give a complete structuer for the 'intermediate borate ester' formed in the reduction of 2-butanone with NaBH4. Why is it necessary to add water after the reaction is complete?
What pressure would have to be applied to a 28.0mL sample of gas at 25°C and 1.00atm to compress its volume to 10.0mL at constant temperature?
Given 100 g of hot tea at 90 C what mass of ice at -10 C must be added in order to obtain a final temperture of 10 C
A cannonball made of iron has a volume of 115 cm3. If iron has a density of 7.86 g/cm3, what is the mass in grams of the cannonball?
balanced chemical equation for the aqueous neutralization of hydrochloric acid with sodium hydroxide forming sodium chloride and water
Use net ion equations to show how ammonium chloride (NH4Cl) is acidic and sodium acetate
Determine the energy in joules of a mole of photons coupled with red light of wavelength
A N2 molecule at 20 C is released at sea level to travel upward. Assuming that the temperature is constant and that the molecules do not collide with other molecules, how far would it travel (in meters) before coming to rest
If a solution containing 92.455 g of mercury(II) chlorate is allowed to react completely with a solution containing 16.642 g of sodium sulfide, how many grams of solid precipitate will be formed?
circle the correct choices to indicate how many electrons each element must gain or lose to form an octet
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