What will the final volume of the sample be
The pressure exerted on a 240 ml sample of hydrogen gas at constant temperature is increased from .428 atm to .724 atm. What will the final volume of the sample be?
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oxygen gas is collected over water at 21 degrees C and an atmosperic pressure of 748 mm Hg. What is the partial pressure of oxygen gas in the mixture.
Acetylacetone (acac) forms a trisacetylacetonateiron (III) complex (i.e., Fe(acac)3) in aqueous solution. A 5 mL aliquot of acetylacetone stock solution is diluted to 200mL with an iron (III) chloride solution.
A helium-filled balloon has a volume of 2.75 L at 17 C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day. What is the outside temperature in K?
Determine the final value of n in a hydrogen atom transmition, if the electron starts in n=2 and the atom absorbs a photon of light with a frequency of 4.75x10^14 Hz
Write the equation for the heat of formation of C2H6(g). Calculate the change in enthalpy if 25.0 g of acetylene reacts with 15.0 g of hydrogen
Charles flew the balloon for fifteen miles and stayed in the air for a total flight time of 45 mins. the balloon was made of silk coated with a thin layer of natural rubber and had a diameter of 27ft.
Platinum crystallizes with a face-centered cubic unit cell. The radius of a platinum atom is 139 pm. Calculate the density of platinum.
What percentage of the water will be vapor when the system reaches equilibrium?assume ideal behavior of water vapor and that the volume of liquid water is negligible. the vapor pressure of water at 45c is 71.9mmHg.
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