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MgO can be formed by combustion of solid MgO. Write a reaction scheme for the process. What operational sign must entropy change by the reaction expected to have (please explain)?
What is the strongest intermolecular force exhibited in each? (One choice will not be used). a. covalent molecules b. ionic compounds c. polar covalent molecules choices
A solution contains 35.0g of glucose, C6H12O6, dissolved in 500g of water at 40 Celsius. The vapor pressure of water at 40 Celsius is 55.3 mmHg. Calculate the vapor pressure of the solution.
A balloon will inflate because the pressure inside the tank is greater than the atmospheric pressure pushing on the outside of the balloon. Assuming the balloon could expand indefinitely and never burst, the pressure would eventually equalize caus..
write a detailed mechanism for the reaction of salicylic acid with acetic anhydride showing clearly the function of the catalyst,
hydrochloric acid is sold as a concentrated aqueous solution. if the molarity of commercial hcl is 12.0 and its density
What is the Volume of 1.05 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL.
Calculate how many kilojoules of energy are released when 27.86g of butane are burned.
What is the solubility of calcium fluoride in a solution that contains 0.015 M calcium chloride? Note calcium chloride is completely soluble in water.
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 and H2= 0.08 . Use the formula CH3OH= Kc[CO][H2]^2 to calculate the concentration of CH3OH.
A certain weak base, which we will represent by the symbol B, has a basicity constant Kb = 3.7 x 10^-4 at 25 *C. The pH of a solution in which [B] = [BH^+] is
what is the molar mass of the gas in a glass bulb with a volume of 2.50 l at a temperature of 22 degrees c and a
The specific heat of ethylene glycol is 2.42 J/g-k. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 Celsius to 40.5 Celsius
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