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1. The valve between a ten litre tank containing a gas at a pressure of 1 atm and a three lite tank containing a gas at 0.5 atm is opened. Compute the final pressure in the tank if nothing else is altered in the surroundings. (The two gases do not react)
2. Considering the given oxidation and reduction half-reactions,( The reaction takes place in a basic solution )balance this equationMnO-4(aq) + S2-(aq) → S(s) + MnO2(s) of the action of MnO4-( permanganate ions) on S2- (sul-fide ions.). What is the smallest possible integer coefficient of S in the combined balanced equation?
The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.24 M sodium sulfate, Na2SO4
using a gas sample of an ideal gas of .95 mol 3.00 atm and at 300 k expands from sixteen litres to twenty eight litres
What is the wavelength of an electron traveling with a velocity of 7.0 times 10 to the 3rd power?
Synthetic chemists often take IR and NMR spectra of crude reaction products, before further purification, looking for evidence that the reaction had afforded the expected product.
Apamine is a small monomeric peptide toxin present in the venom of the honeybee. it has the sequence: CNCKAPETALCARRCQQH a)it is known that apamine does NOT react with iodoacetate. how many disulfide bonds are present?
When 2.5000g of NaOH were dissolved in 49.0g water in a calorimeter at 24.0C, the temperature of the solution went up to 37.1C.
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
Consider a system with four energy levels: 0E, 1E, 2E, 3E, where E is 100K * k (E represents epsilon and k is Boltzmann's constant). Assume that there are 10 particles.
What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits
A 20L vessel is filled with 1.00 mol of ammonia. NH3. What percent of ammonia dissociates to the elements if equilibrium is reached at 345C
A 15ml aliquot of this solution was the diluted to 500ml of water. Calculate the final molarity
The density of hydrogen gas in a flask is 0.147 g/L at 305 K. what is the pressure inside the flask? Calculate the density in G/L of CH4(g) at 75 Celsius and 2.1 atm (R= .08206 L*atm/mol*K).
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