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A particular balloon is designed by its manufacturer to be inflated to a volume of no more than 2.5 L. If the balloon is filled with 2.4 L of helium at sea level, is released and rises to an altitude at which the atmospheric pressure is only 504 mm Hg, will the balloon burst? (Assume the temperature is constant.) What is the volume of the balloon at the higher altitude?
what is the pH solution if 100 mL of the solution is .15 M acetic acid CH3CO2H and contains 1.56g of sodium acetate, CH3CO2Na? Ka=1.8x10^-5
Which electrode increases in mass as the reaction proceeds. Why. If the voltage across the electrodesis observed to be 1.1 V, what would be the voltage if 3 of these cells are connected in series
assuming zinc is the limiting reagent, how much zinc (in grams) do i need to fill a 1.0 liter balloon with hydrogen gas at a temperature of 25 degrees celcius and a pressure of 780 mmHg
flask apparatus which now contains 2.00 l h2 at a pressure of 360 torr and 1.00 l n2 at an unknown pressure. if the
How much heat is absorbed in the formation of 1.69 mol of NO? Answer units KJ
Calculate the energy in joules of a 7.46 g object moving at a speed of 713 m/s. Enter in Scientific notation. Also determine how much greater the electrostatic energy is between charges
The reaction of magnesium metal with HCl yields hydrogen gas and magnesium chloride. What is the volume, in liters, of the gas formed at 736 torr and 18 oC from 4.49 g of Mg in excess HCl?
A 0.0623g sample of cobalt sulfate was dissolved in dilute HCl and treated with 10% BaCl2 solution. The BaSO4 precipitate weighed 0.1075g. Determine the formula of this sulfate of cobalt.
240 g of water at 20'C are mixed with a sample of iron at 500'C. The final temperature of the system is 42'C. Find the mass of the iron sample.
If the coal is burned in a power plant that uses 1900 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
considering the given reaction nog o3g-no2g o2g and determine the rate constant for the reaction at 75 degreesnbspif
nitric acid and potassium carbonate. b. sodium bromide and lead nitrate. c. acetic acid and calcium hydroxide.
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