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A reaction involving 93 mg of aniline, 122 mg of p-hydroxybenzaldehyde, 2 ml of absolute alcohol and a stir bar are placed in a 150X18 mm test tube. One drop of 1N HCl is added to the stirred solution which is heated in a boiling water bath for 5 minutes. on cooling a precipitate is deposited which is collected and recrystallized in absolute alcohol. What is the product of this reaction?
What mass of this substance must evaporate in order to freeze 160 g of water initially at 21 0C? (The heat of fusion of water is 334 {J/g}; the specific heat of water is 4.18 {J/g c.K}.)
A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
Determine what amount of heat is required to increase the temperature of sixty grams of ethylene glycol from 15.1 degree Celsius to 40.3 degree Celsius?
Calculate the energy necessary to boil 100.0 g carbon disulfide, CS2, at its normal boiling point.
Assuming the volume of the stomach to be 1.0L what will the pH change of the stomach acid resulting from the ingestion of one tums tablet
The KOH solution standardized is used to titrate a 20.00ml sample of sulfuric acid (H2SO4) solution of unknown concentration. Determine [H2SO4] for the unknown acid solution if 41.27mL of the NaOH solution is needed to fully react with it.
The molar heat of vaporization at 298 K for diethyl ether(C4H10O) is 26.0 kj/mol. How much heat would be requiered to vaporize 0.714 g of ether at 289 K?
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 20.1 atm
Write equations for the mechanistic steps in the dehydration of cyclohexanol assuming an E1 mechanism.
What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density of 1.25 g/ml by 1.60°C
A system that had work done on it but which receives or loses no heat from or to the surroundings has
Predict the precipitate that forms when aqueous solutions of silver nitrate and potassium chloride react to form products in a double-replacement reaction. Include a discussion of how to write the complete chemical equation describing this reactio..
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