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a) In the study of chemistry and engineering relations,the choice of the best type of reboiler or vapouriser for a given duty will depend on three factors namely.
b) Write down the statement of the Nernst's theory in chemistry of electric cells.
Marble (calcium carbonate) reacts with hydrochloric acid solution to form calcium chloride solution, water, and carbon dioxide. What is the percent yield of carbon dioxide if 2.90 g of the gas is collected when 10.5 g of marble reacts
How many 2p atomic orbitals from boron must be mixed with a 2s atomic orbital to yield the bonding hybrid atomic orbitals in BF3. WHY
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Compute the pH of the solution before the addition of any HNO3. Kb of NH3 =1.8 × 10-5.
Assume the temperature of the mixture is chosen so that Kp=0.12. Predict the effect on the partial pressure of SO3 as equilibrium is achieved by using Q, the reaction quotient.
what mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
Propose a structure for thymol, and show how your structure is consistent with the spectra. Propose a fragmentation to explain the MS peak at m/z 135, and show why the resulting ion is relatively stable.
Determine the energy change associated with these changes in state: a. 138g of steam condenses,b. 261mg of solid mercury melts,c. 8.36g of rubbing alcohol freezes d. 52g of liquid methane boils
A solution is prepared by dissolving 14.7 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 56.00 mL of water.
A sample of 45.0 mg a perfect gas fills a volume of 320.0 cm^3 at a pressure of 256Torr and at a temperature of 298 K. Determine the molar mass of such a gas based on the above data and assuming perfect gas behavior.
A certain first-order reaction has a rate constant of 1.00x10-3 s-1. How long will it take for the reactant concentration to drop to 1/8 of its initial value?
Find three items in your pantry or in a store that contain the surfactant sodium lauryl sulfate or sodium dodecyl sulfate. Provide the product name and what it's used for.
Using the calibration equation and the absorbance you measured for the prepared sample, calculate the ferroin concentration. Show your work and don't forget to include units.
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