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If a chalice made of pure gold weighing 0.6 kg and initially at 25 C is filled with 150.0 mL of water at 83 C, what is the final equilibrium temperature of the system? The heat capacities of water and gold are 75.29 and 25.42 J/mol/K, respectively.
After tert-amyl chlorid has been distilled, one notices that there is some liquid remaining and this liquid distills at approximately 373.15K.
What is the pH of the equivalence point of the two solutions if you then titrate these solutions separately with the NaOH solution? The Ka for acetic acid is 1.8e-5.
What is the pH of the buffer after the addition of 0.02 mol of NaOH? C)What is the pH of the buffer after the addition of 0.02 mol of HI? Express Numerically
The type of solid that is characterized by low melting point, softness, and low electrical conduction is a(n) ______________ solid: a). Molecular b). covalent-network c). Ionic d). Metallic
The constant of a reaction is 3.5 x 10^-3 S^-1 at 25 degrees Celsius, and the activation energy is 33.6 Kj/mol. What is k at 75 degrees Celsius
Calculate the cost of ingredients to make one gallon of biodiesel from waste vegetable oil (WVO). Assume that all of the waste oil is converted to fatty acid methyl esters and that 1 gallon of WVO yields 1 gallon of FAME.
a) The name acetic anhydride implies that the compound will react with water to form acetic acid. Write the equation for the reaction. b) Write the equation for the reaction by which aspirin decomposes in an aqueous ethanol solution.
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell (c) What is the value of the equilibrium constant for..
When 1.543 g of copper(II) sulfate pentahydrate is heated to drive off the water of hydration, how many grams of copper(II) sulfate and water are formed?
a solution of ammonia and water contains 3.20times1025 water molecules and 8.10times1024 ammonia molecules. how many
Can someone please show me a mechanism for a Diels-Alder Green Organic Phototchemistry reaction mechanism? We used 9-(hydroxymethyl) anthracene, deionized water, and N-methylmaleimide as the reagents and allowed to solution to reflux.
If the 0.020 moles of HCl were added to 250 ml of de-ionized water instead of the buffer, what would be the pH be? Does this tell you if the buffer successful prevents large changes in pH
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