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Choose the metal that is produced by electrolysis of its molten chloride salt. a) Li b) K c) Al d) Ca e) All of the above
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
Assuming that the specific heat of water is 4.18 J/(g · °C), and that the heat absorption by the calorimeter is negligible, estimate the enthalpy of combustion per mole of anthracene.
What is the purpose of adding sodium sulfate to the organic layer after all of the extractions are complete?
When 5.00 g of Cr2O3 are allowed to react with 12.00 g of CCl4, if the yield in such experiment is 85.05? which reactant is left over of CrCl3 are obtained? Cr2O3 + 3 CCl4 → 2 CrCl3 + 3 COCl2
Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
Three gases, hydrogen, helium, and krypton are confined in a 10.0 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 3.00 moles of helium, and 5.00 moles of krypton.
For three known solutions and an unknown solution of a compound in water: Which one of the following values is possible as the molarity of the unknown
what is the concentration of toluene in the air space of the bottle and what is the concentration of toluene in the water? The dimensionless Henry's Law Constant for toluene at 25 degrees C is 0.265 (mg/Lair)/mg/Lwater).
The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather observation balloons.
A volume of 25.0 mL of 0.100 M C6H5CO2H(aq) is titrated with 0.100 M NaOH(aq). What is the pH after the addition of 12.5 mL of NaOH. (Ka of benzoic acid = 6.3 ´ 10-5)
A mixture of CaCO3 and CaO weighing 0.665 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.500 g.
If it takes 1250 J to raise the temperature of 33.5g of a substance 59 deg C what is the specific heat of the substance
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