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WHen 0.075 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 337 mL of solution, how many ammonium ions are present?
Compute the final pressure in the tank if nothing else is altered in the surroundings. (The two gases do not react)
How many liters of oxygen collected over H2O and measured at 27 degrees Celsius and 745.0 mm Hg can be prepared by decomposing 4.421 grams of gold (III) oxide? The vapor pressure of H2O at 27 degrees Celsius is 26.7 mm Hg.
Suppose that ammonia (a monoprotic base), applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81.
What volume of ethanol must be diluted with water to prepare 308 mL of 0.700 M solution?The density of ethanol is given as 0.789 g/mL.
A sample of steam with a mass of 0.550grams and at a temperature of 100 degrees celcius condenses into an insulated container holding 4.30grams of water at 6.0 celcius
A total charge of 96.5 kC is passed through an elctrolytic cell. What mass of silver metal will be produced from a silver nitrate solution?
Organic Chemistry Lab: Reduction and Spectroscopy, 1. Sketch the NMR spectrum you would expect to observe for the following compounds:
when 56.6 g of calcium and 30.5 g of nitrogen gas undergo a reaction that has a 93.0% yield, what mass (g) of calcium nitride forms.
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide.
Compute the amount of heat needed to completely sublime 43.0 grams of solid dry ice at its sublimation temperature. (The heat of sublimation for carbon dioxide =32.3).
Determine the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency = 1.3 x 10^15 Hz? Express your answer in Joules
The first ionization energy of bismuth is Ei1=+703 KJ/mole. What is the longest possible wavelenghth of light that could ionize an atom of bismuth?
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