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Question: A batch of fuel-cell electrolyte is to be made by mixing two streams in large stirred tank. Stream 1 contains a water solution of H2SO4 and K2SO4 in mass fractions XA and xgl lbm/lbm of solution, respectively (A = H2SO4, B = K2SO4). Stream 2 is a solution of H2SO4 in water having a mass fraction XA2.
If the tank is initially empty, the drain is closed, and the streams are fed at steady rates w1 and w2 lbm of solutionlhr, show that XA is independent of time and find the total mass m at any time
what is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? please put your answer in units of
the flask was filledto the calibration mark with water. What were the equilibrium concentrations of H3PO4,H2PO-, HPO-2, PO-3, and H+ in the resultant solution. Ka1 = 7.1x10-3, Ka2 = 6.3x10-8, and Ka3 = 4.2x10-13 for H3PO4.
The half-life of carbon-14 is 5730 years.If only 5.46% of the carbon-14 initially present in a bone is found to exist after a given length of time has elapsed, how old is the bone
If the compound dichlororodifluoromethane (CCl2F2) has a normal boiling point of -30C a critical temperature of 112C as well as a corresponding critical temperature of 40 atm. Explain if the gas is compressed to 18atm at 20C, will the gas condense..
Which of the following underlined items is not an intensive property (a) A chemical reaction reqyuires 3.00g of oxygen (b) Solid copper hydroxide is blue colored (c) the density of helium at 25degree celsius
How many moles of MgI2 are in 1.3L of a 0.2M solution? How many moles of Mg2+ are in the solution? How many moles of I-?
The average bond enthalpy for a double bond is 614 and that of a single bond is 348 . Estimate the energy needed to break only the bond of the double bond of 2-butene. Express your answer numerically in joules per molecule.
The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.48°C. For the process H+(aq) + OH-(aq) H2O(l), the heat of neutralization is -56.2 kJ/mol. What is the final temperature of the mixed solution?
Biocarbonate ion can react in water to produce hydroxide ions and carbonic acid according to the equation below.
Write the balanced chemical equation including al phases of the first dissociation of phosphoric acid and Calculate the PH at the first equivalence point
You have a mixture containing the following pairs of compunds as solid. which of the following reagents could you use to separate the two compunds from each other
chloral hydrate c2h3cl3o2 is a drug formerly used as a sedative and hypnotic. it is the compound used to make mickey
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