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Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution. (The Ka of benzoic acid is 6.30 × 10-5, the molar mass of benzoic acid is 122.12 g/mol, and the molar mass of sodium benzoate is 144.10 g/mol
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration
Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB. A bag contains a mixture of copper and lead BBs
Write the structure for the organic reagents and products, name the products and indicate stereochemistry when appropriate
magnesium oxide decomposes to form 7.29 of magnesium, what mass of oxygen gas is also released in the reaction?
Recommend an explanation why the cyclic intermediate might have two important groups in a trans relationship that could factor the E-alkene.
The overall equilibrium involves Ksp, Ka3 of phosphoric acid and Kw. Construct the constant and show the three equations that apply.
Clausthalite is a mineral composed of lead selenide (PbSe). The mineral adopts a NaCl-type structure. The density of PbSe at 25C is 8.27g/cm^3. Calculate the length of an edge of the PbSe unit cell in Angstroms.
what is the wavelength of a photon that has three times as much energy as that of a photon whose wavelength is 779 nm.
In a coffee-cup calorimeter, 1.50 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.65°C.
A 10.0L container of helium gas with a presure of 250mmHg at 0 degrees Celsius is heated to give a pressure of 1500mmHg. What is the temperature in degrees Celsius?
Calculate the pH of a buffer that contains 0.270 M hydrofluoric acid (HF) and 0.180 M cesium fluoride (CsF). The Ka of hydrofluoric acid is 6.8 x 10^-4.
How much energy is required to evaporate 100.0 grams of water that is at 100.0 degrees Celsius?
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