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Problem: When a gas expands against an external atmosphere, work is done by the gas. Suppose a gas is contained in cylinder with a movable piston. The external pressure is 1.25 atm and the volume within the cylinder increases from 0.250 L to 1.50 L while temperature stay the same. What is the work of the gas in the cylinder in units of atm-L and in Joules?
Calculating the equilibrium constant (Keq) for the given reactions - Determine the Keq for the following reactions
For each species you include, identify its trophic level. 9My organism=Mushroom)
SLIGHTLY LESS than 100 degrees Celsius, but the final boiling point was AT 100 degrees Celsius. Why should the boiling point rise as the distillation progresses?
Calculate the Calorimeter Constant if 25 g of water at 50 C was added to 25 g of water at 25C with a resulting temperature of 35 C?
you pour 1 liter of water into a thermally insulated electrically heated teapot which you then plug in. how long will
A set of 13 particles occupies states with energies of 0, 100, and 200 cm^-1. Calculate the total energy and number of microstates for the following energy configurations.
What volume (mL) of 0.663M potassium hydroxide aqueous solution is needed to neutralize [?this means to completely react with] 842 mL of 0.554M nitric acid?
what is the atomic radius of a nickel atom in picorneters and If a roll of nickel coins has a mass of 205 g, what is the mass of the roll of nickels in ounces?
Calculate the amount (mL) needed of a 4.0 M phenylmagnesium chloride in THF solution to give 1.5 equivalents based on the amount of starting material used. Starting material needed
If the spacing between these planes corresponds to the unit cell length (d = a), calculate the radius of a(n) cesium atom.
186 grams of sodium oxide a basic anhydride are to be neutralized in a 2 step method. first the solid is added to
Will a precipitate form when 20.0mL of Pb(NO3)2(aq) with a concentration of 2.50x10-4 mol/L is reacted with 45.0mL of CaCl2(aq) with a concentration of 1.25x10-3 mol/L
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