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Question: A solution of potassium chromate (K2CrO4) is to be used to produce K2CrO4 crystals using an evaporator and crystallizer/filter. A 38% solution is fed to the evaporator. The stream leaving the evaporator is 48% K2CrO4 and is fed to the crystallizer /filter. Pure K2CrO4 crystals are produced and the remaining solution is 44% K2CrO4. This solution is cycled back to the evaporator. If 1.2 t/h of pure crystals are needed, calculate the total input to the evaporator, the feed rate to the crystallizer/ filter, and the water removed from the evaporator.
How many milliliters of a 0.300 M lead(II) nitrate solution are needed to react with 50.00 mL of a 0.500 M potassium chromate solution?
Define and write the equation and mechanisms for the decomposition reaction that occurs with aspirin in water
Calculate the partial pressures of CO2 and CO at equilibrium if 5.0 g of CO2 are introduced into a 10.0 L container and heated to 1200 K in the presence of 1.50 g of graphite (C (s)).
A 31.0-g sample of water at 290. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
What is the pH of a 0.15 M solution of the weak base ammonia (NH3)? The Ka of the conjugate acid is (NH4) is 5.6e-10.
1 research on the causes of coronary artery disease.on the basis of your research respond to the following state the
a solution of ethanol c2h5oh in water is prepared by dissolving 58.0 ml of ethanol density 0.79 gcm3 in enough water
two gases are contained in gas bulbs connected by a valve. gas a ispresent in a 44 l bulb at a pressure of 381 torr.
Fertilizer is made ??by mixing equal masses of potassium nitrate (KNO3) and ammonium phosphate ((NH4)3PO4). What is the mass fraction of nitrogen in this formula
how many grams of calcium carbonate , CaCO3, do you need in an antacid tablet to neutralize 20 ml of stomach acid ?
The following reaction was allowed to reach equilibrium at 25°C. Equilibrium concentration is given for each component. Calculate the equilibrium constant, K, for this reaction.
A conducting sphere of radius 10 cm has an unknown charge. If the electric field 20 cm from the centre of the sphere is 1.5 × 103 N/C and points radially inward
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