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A sample of solid ammonium sulfide (NH4)2S, is placed in a closed bulb which is then filled with 0.0150 mol of inert He gas. The pressure of the He at 25°C is 145 mm Hg. The bulb is then heated to 325°C and all of the (NH4)2S decomposes to form gaseous NH3 and H2S, with a resulting total gas pressure in the bulb of 875 mm Hg. What is the partial pressure of the NH3 gas in the bulb at 325°C? (Assume that the volume of the solid (NH4)2S is negligible compared to that of the bulb).
Describe how to fully integrate the graphing calculator or computer with clear and easy-to-follow directions for students.
how to solve the random variable x represents the number of cars per household in a town of 1000 households. find the probability of randomly selecting a household that has less than two cars.
Now suppose one big firm comes and buys out all of the firms in the cartel. This monopoly somehow miraculously is able to perfectly price discriminate. How much will this firm produce What will be the deadweight loss created by this monopoly
There is substance that needs to be heated. the substance is gas. If were given T and P of the inlet and outlet, and given two equaitons one a z equation, for example:
What is the distance between the origin and the point (8, -17)? If necessary, round your answer to two decimal places.
four pairs of data yield r=0.942 and the regression equation y=3x. also, y=12.75. what is the best predicted value of y for x=2.9
A bag contains 16 red marbles and 10 blue marbles. If two marbles are chosen at random, what is the probability of getting two red marbles?
The government finances its purchases through lump-sum taxes on consumers, where T denotes total taxes, and the government budget is balanced every period, so that G = T. The solution for steady state capital per worker k.
Consider a liquid with a vapor pressure of 320. torr at 20.0 degrees C and a vapor pressure of 540. torr at 50.0 degress C. What is the normal boiling point of this liquid?
600 torr contains 50.0% Helium and 50.0% Xenon by mass. What are the partial pressures of the individual gasses?
What is the molecular geometry of Cl2CO?
According to Raoult's law, which statement is false?
For a reaction at equilibrium, which of the following is the best way to think about it?
The dipole moment of HBr (a polar covalent molecule) is 0.784 (debye), and its percent ionic character is 11.6 . Estimate the bond length of the bond in picometers.
Hom much .200M KOH is required to completely neutralize
Bonding in some solids does not fit neatly into one of the four categories. Explain why the bonding in Na2CO3 is not purely ionic.
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
If a solution containing 17.76 g of mercury(II) perchlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfate, how many grams of solid precipitate will be formed.
2C4H10 + 13O2 → 8CO2 + 10H2O The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen.
If someone using one of those masks exhales 0.716 g of CO2/min, how many grams of potassium superoxide would be consumed in 12.00 minutes?
How much heat is evolved when 1259 g of water condenses to a liquid at 100°C? ΔHcond = -40.7 kJ/mol.
A piece of a newly synthesized material of mass 25.0 g at 80.0C is placed in a calorimeter containing 100.0 g of water at 20.0C. If the final temperature of the system is 24.0C, what is the specific heat capacity of this material?
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