What is the final volume of the balloon
Liquid nitrogen has a density of 0.808 g/mL at -196 C. If 440.0 mL of LN2 is injected into a weather balloon to inflate it, what is the final volume of the balloon at 0.96 bar and 20 C?
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In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength, in m, of an electron traveling with a velocity of 7.0 megameters per second. The mass of an electron is 9.1 * 10^-28 g?
Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron falls from the n=7 to the n=4 principal energy leve.
Compute the break-even point in dollars for 2012. <-- I got this $2,800,000 2.Compute the break-even point in dollars under each of the alternative courses of action.
If a 1.223 g sample of aluminum metal is heated in a chlorine gas atmosphere, the mass of aluminum chloride produced is 6.043 g. Calculate the empirical formula of aluminum chloride.
A 0.035 M solution of a monoprotic acid is 13 percent ionized. Calculate the ionization constant of the acid.
What should Penny do? Who is responsible for this disaster? Does Stephanie need a spanking? Should Jennifer get fired? What would you do? Don't forget to use some variance analysis.
If 15.7g of CaCl2 is dissolved in 1.0L of 1.00M NaCl solution (assume no change in volume), what is the molar concentration of the Cl- ions in the resulting solution?
The equilibrium constant for the reaction of S02 (g)+NO2 → SO3(g)+NO(g) is 3.0. Find the amount of NO2 that must be added to 2.6 mol of SO2 in order to form 1.3 mol of SO3 at equilibrium?
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