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Gaseous oxygen is held in 2 separate containers at identical temperature and pressure. The volume of container A is 7.92 L and it contains 0.209 mol of the gas. The volume of container B is 2.45 L. How many moles of the gas are in container B?
Calculate deltaG at 45 degrees Celsius for a reaction for which delta H = -76.6 kj and delta S = -392 J/K. The answer is supposed to be in kJ, please help
At what pH will an aqueous solution of 0.200 M Ni^2+ begin to precipitate as Ni(OH)2 at 25 degrees C? Ksp of Ni(OH)2 is 5.5 x 10^-16 at 25 degrees C.
The Ksp of magnesium carbonate is 4.0x10-5. write balanced chemical equations and Ksp expressions for each of the salts as part of your solution
A compound composed of iron and carbon monoxide, Fe x (CO) y, is 30.70% iron. What is the empirical formula for the compound
Calculate the initial rate of a first-order reaction if the concentration of reactant is 0.63 M and the half-life is 6.9 s
In a calorimeter of capacity =0, you mix 50g of water at 80°C with 100g of water at 10°C. What is the final temperature
Which element has 55 neutrons, 36 electrons, 40 protons and has a mass of 95. I know its 95Mo but does it have a ion charge of +2,+4,or+6? I've tried +2 and +6 but its wrong. Help would be appreciated.
What is the pH after 0.150mol of HCl is added to the buffer from Part A. Assume no volume change on the addition of the acid. Express the pH numerically to two decimal places.
A 54.9 g sample of the compound X2O7 contains 33.6 g of oxygen atoms. What is the molar mass of element X
Aluminum has a specific heat of 0.900 J/g·°C. How much energy is required to raise the temperature of 160. g of aluminum from 20.0°C to 183.0°C?
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask?
What is the mass in grams of 1.56 moles of menthol?
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