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15.0 g of steam at 373 K is added to 250.0 g of H2O (l) at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate ?S for the process.
Hydrocarbon chemistry problems, For the compound, 1,2-dibromoethane, the most stable conformation would be
the work function for chromium metal is 4.37 eV. What is the wavelength of radiation that must be supplied to metallic chromium to release an electron with a kinetic energy of 4.25x10^-18?
what is the change in enthalpy for 2.854 moles of the liquid?
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
Calculate the freezing point of the following solutions, assuming complete dissociation. Part A= 0.114mK2S Part B=20.5g of CuCl2 in 401g water Part C=6.5% NaNO3 by mass
What is the van't Hoff factor for HX in water? b) What is the molality of X1- ions in the solution?
Balance the following reaction: Manganese(V) sulfate reacts with chromium(III) sulfate and water to give manganese(II) sulfate, chromium(VI) oxide
At 212 mm Hg and 24 °C, a sample of gas occupies a volume of 125 mL. The volume is increased to 325 mL and the temperature is reduced to -5.0 °C. What is the final pressure of the gas in the flask?
Calculate the molarity of a solution of glycerol made by dissolving 67.000 mL glycerol at 15 C in enough water to make 320.00 mL of solution.
Why isn't sodium hydroxide? In the reaction of Aldol reaction to form ethyl trans-cinnamate. Reactant are Benzaldehyde and ethyl acetate.
Both potassium chloride (KCL) and potassium hydroxide (KOH) are very soluble in water. However, as one increases the temperature of the solution, KCL becomes more soluble and KOH becomes less soluble. Explain
Calculate the molar concentration of OH - ions in an 01.33 M solution of hypobromite ion, BrO- (Kb = 4.0 10-6).
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