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In a perfect system when warm water is added to cold water, all of the heat energy released would be absorbed by the cold water. 1) How does the system that we are using differ from this perfect system?
How do we correct this imbalance?
After heating, 37.19 grams of the anhydrous compound remained. What is the formula of the hydrate?
How many moles of ammonia are produced when 20 moles of hydrogen react with 40 moles of nitrogen
determine the molarity of each of the ions present in the following aqueous salt solutions.
If 30 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
A sample containing 1.5 moles of neon gas has a volume of 8.00 L. What is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature.
Estimate the average rate of production (Using this rate) of oxygen over the same time period. Considering the given equation 2H 2 O 2 --> 2H 2 O+O 2 -H 2 O 2
The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm. The reaction occurs in a 1.48- cm sample cell, and the only colored species in the reaction has an extinction coefficient of..
a 1.628 gram sample of a hydrate of magnesium iodide is heated until all of the water is removed. its mass is now 1.072 grams. what is the formula of the hydrate?
What is the pH of the buffer after the addition of 0.02 mol of NaOH? C)What is the pH of the buffer after the addition of 0.02 mol of HI? Express Numerically
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous hydrofluoric acid requires
Rate Constant with Temperature Changes, Rearrangement of methyl isonitrile to acetonitrile has activation energy of 25.0 kJ/mol and a rate constant of 8.1*10^-4s-1 @ 80 Celsius.
A cube of metal which looks like gold (Au, 19.32 g/cm3) is suspected by a modern Archimedes of being either iron (Fe, 7.90 g/cm3) coated with gold or aluminum
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