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A sample of solid ammonium sulfide (NH4)2 S is placed in a closed bulb which is then filled up with 0.0150 mol of inert He gas. The pressure of the He at 25 degrees celsius is 145 mmHg. The bulb is then heated to 325 degrees celsius and all the (NH4)2 S decomposes to form NH3 and H2S, with a resulting total gas pressure of 875 mmHG. What is the partial pressure of the NH3 gas in the bulb at 325 degrees celsius?
Draw one eclipsed and one staggered conformation of 2,3-dimethylpentane using: Newman projections that sights down the C2-C3 bond, Sawhorse projections that sights down
Determine the value of the first-order rate constant. Answer units are microseconds^-1 or (us^-1). B) Determine the half-life for the decomposition of Cl2O2.
Five grams of the specified pure solvent is placed in a variable volume piston. What is the volume of the pure system when 50% and 75% have been evaporated at: (i) 30 deg C (ii) 50 deg C?
Liquids "flow" quickly as measured by the speed at which a small amount of liquid will spread itself out to form a puddle. What does this behavior imply about the speeds at which the individual liquid particles are moving relative to each other?
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with Ba(OH)2(aq).
enough solid KHT be added to the kcl-nacl solution to ensure that some solid remain undissolved after 20 minutes stirring?
At 25 degrees celsius and 750 mm Hg, 1.05 g of this gas occupies a volume of 0.500 L. What is the molecular formula of the gas?
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 31 degrees C and 1.00 atm?
During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer A150 is 30mM Tris (pH 8.8) and 150mM NaCl. Given 1L of 1.5M Tris and 500ml of 5M NaCl,
then dried the flask and added some pieces of titanium to it. the stoppered flask plus the titanium weighed 64.763g. then filled the flask w/water, leaving the titanium pieces in the flask, and found a mass of 67.561g for the flask plus titanium a..
Using the information below, calculate the mass of benzene in each phase and find the total mass of benzene at the site.
The vapor pressure of water is 28.3 torr at 29°C then determine what is the partial pressure of oxygen collected if a reaction at that temperature produces Carbon Dioxide which is collected over water at a total pressure of 576 torr, ?
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