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The normal boiling point of ethane is 184 K, at which ΔHovap = 15.5 kJ/mol. ΔSvap= 84.239 Determine ΔGvap at normal boiling and at 17 celsi?
Calculate the pH of the titration mixture after 10.0, 20.0 and 30.0 mL of base have been added. (the ka for acetic acid is 1.76 x 10^-5).
If the mass of water surrounding the calorimeter was exactly 1000 g and the heat capacity of the bomb calorimeter was 1.75 kJ/°C, calculate the molar heat of combustion of liquid methanol .
The Law of Conservation of Mass states that matter is neither created nor destroyed in a chemical reaction. How do you explain iron nails getting heavier as they rust?
A patient being treated for thyroid cancer is to receive a dose of iodine-131. The typical dose is 4.5 μCi/kg of body weight. How many microcuries (μCi) will be administered to a patient weighing 61.0 kg?
A sample of carbon monoxide, CO, occupies a volume of 350. mL and exerts a pressure of 1020. torr at 25°C. If the volume expands to 500. mL with no temperature change, what pressure will the gas exert
Suppose that 23.2 mL of 0.410 M sodium chloride is mixed to 23.2 mL of 0.339 M silver nitrate. Determine how many moles of silver chloride would precipitate?
3000 MT of a 6-10-16 fertilizer was prepared by mixing ammonium sulfate (95% purity), phosphoric acid (95% purity), muriate of potash (95% purity) and gypsum (90% purity). Compute how much of the gypsum was used.
If 16.76 mL of an aqueous solution of NaOH reacts with 0.5683 g of KHC8H4O4, how many moles of NaOH reacted. What is the concentration of the NaOH solution
Use the appropriate values of Ksp and Kf to find the equilibrium constant for the following reaction: FeS(s)+6CN^-(aq)->
Which element has an oxidation number of 7. A. Mn in MnO4- B. I in IO3- C. Fe in Fe2O3 D. Cl in ClO2
Calculate the pH of a solution made from dissolving 1.00 moles of benzoic acid with 1.00 moles of sodium benzoate in enough water to make 750ml of solution.
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
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