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Calculate the mass of Nitrogen at room temperature dissolved at room temperature in an 80 L aquarium. Assume a total pressure of 1 atm and .78 mole fraction.
Many cold packs contain ammonium nitrate and water. The dissolving of ammonium nitrate is endothermic. Which of the following best describes the energy and entropy changes that occur for the ammonium nitrate system
what is the concentration of ammonia in a buffer containing 0.10M ammonium chloride at a pH 10.6?
How many grams of N2 are required to react with 2.30 moles of Mg in the following process?
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
A copper refinery produces a copper ingot weighing 121 lb. If the copper is drawn into wire whose diameter is 8.00 mm, how many feet of copper can be obtained from the ingot.
The compound BeBr2 has a total of how many shared electrons and how many non-bonded electrons?
How many grams of the element nickel are contained in 10.0 g of a 10.2 wt % solution of nickel sulfate hexahydrate, NiSO4 . 6H2O (FM 262.85)?
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
how do you find the mass of one mole of spilt pea using the mass of .069 nd Avoadro's number (6.02x1023rd).
The concentration of oxygen, O2, dissolved in a sample of seawater is 6.22 ppm by mass (concentration 1 ppm - 1 part per million - means
if the freezing point of a 0.106m CH3COOH solution is -0.323 degrees celcius, what is the percent of acid that has undergone ionization?
What is the pH at the half-stoichiometric point (half-way to the endpoint) for the titration of 0.22 M HNO2(aq) with 0.10 M KOH(aq)?
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