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Presume that we have a mixture of N2 (g) and O2 (g) of unknown composition whose total pressure is 385torr. If all the oxygen as is removed from the mixture by reaction with phosphorus, which doesn't react directly with nitrogen then the new pressure is 251torr. Compute (a) the partial pressure of nitrogen as well as (b) the mole fraction of each gas in the original mixture.
One useful method for recycling scrap aluminum converts some of it to common alum [potassium aluminum sulfate dodecahydrate, KAl(SO4)212 H2O], an important dye fixative and food preservative.
when a gold nugget with a mass of 521 g is added to 50.0 ml of water the water level rises to 77 ml what is the density of gold
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount available from pure gasoline
Isomeric products isolated from free-radical chlorination, Some isomeric products were isolated from the free-radical chlorination of (R)-sec-butyl chloride.
Calculate the equilibrium constant (Kc) and 25 degrees C from the free-energy change for the following reaction: Zn (s) + 2Ag(aq) Zn (aq) +Ag (s)
osmium has a density of 22.6 g/cm3. what volume (in mL) would be occupied by a 21.8 g sample of osmium?
a 0.4196 grams xhx mole fraction of hx solution of an acid hx has a density 1.141 gml and the molar mass of the acid
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16.
What is the molar concentration of 2.0 grams of sodium chloride brought to 0.25 L using water
The decomposition of hydrogen peroxide to gaseous O2 and water is a spontaneous process, yet H2O2 is stable for long periods of time. Explain
The distribution coefficient, K= conc. in ligroin/conc. in water, between ligroin and water for solute A is 7.5. what weight of A would be removed from a solution of 10g of A in 100 mL of water.
How many grams of calcium phosphate are theoretically produced if we start with 3.40 moles of Ca(NO3)2 and 2.40 moles of Li3PO4? Reaction: Ca(NO3)2 + Li3PO4 --> LiNO3 + Ca3(PO4)2
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