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Estimate the density of Rb if it crystallizes in a body-centered cubic unit cell and has an atomic radius of 247.5 pm.
Explain why bubbles are observed to emerge from the jar when it is in the boiling water. b. Explain why the lid "pops down" on the jar top soon after removing the jar from the boiling water.
What is the molarity of the new solution compared to the molarity of the initial solution?
draw an energy level diagram for Hydrogen starting at n=2 and ending at n=6. (n=1 transitions are high-energy transitions and emit in the ultra-violet region).
what is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 grams of magnesium metal?
The small bubbles that form on the bottom of a water pot that is being heated (before boiling) are due to dissolved air coming out of solution.Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen ga..
A solution is made by dissolving 0.100 mols of NaOCl in 100.0 mL of water. The Ka of hypochlorous acid (HClO) is 3.0*x10^-8 at 25.0 C. a.) Write any relevant chemical equations or equilibrium reactions.
An 1.07 mol sample of carbon dioxide gas at a temperature of 8.00 oC is found to occupy a volume of 22.7 liters. The pressure of this gas sample is
How many grams of ethylene glycol (C2H6O2) must be added to 1.10 kg of water to produce a solution that freezes
What is the mass of sodium ion circulating in the blood if the concentration of sodium ion in this individual is 0.135M.The average adult has a total blood volume of 5 liter.
An excess of zinc metal reacts with 500. mL of 12M hydrochloric acid and produces 48.8 L of hydrogen gas at 20 degrees C and 750 torr. a)Determine the mass of zinc metal reacted b)Determine the percent yield for the reaction
if a container of nitrogen, oxygen, carbon dioxide has a pressure of 2.00atm and the partial pressure of O2 is 312torr,
The three main components of dry air and the percentage of each are Nitrogen(78.08%), oxygen (20.95%), and argon (0.93) A) calculate the partial pressure of each gas in a sample of dry air at 760mmHg
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