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Determine the percent yield of barium sulfate obtained (4.9852g) when 100.0 mL of a 0.2516M aqueous barium chloride is treated with an excess of sulfuric acid? Hydrochloric acid is a by-product.
Tenzic acid is a H2Tenz is a diprotic acid with ionization constants Ka1 = 4.1 x 10-4, Ka2 = 1.5 x 10-9. Calculate a value for the [Tenz2-] in a 0.500 molar solution of H2Tenz.
There are significant differences between Bacteria and Eukaryotes in the manner in which genetic information becomes functional gene product
how much heat (in KJ) is required to warm 10g of ice, initially at -10 degree celsius, to steam 110 degree celsius?
Explain how many cups of coffee drunk consecutively would be lethal to 50% of a group of 150 pound humans. Presume one cup of strong coffee contains 103.8 grams of caffeine. The LD50 lethal dose of 50% value of caffeine is 130 mg per kilogram.
one cup is equivalent to 237 cm^3. In 1 cup of oil has a mass of 216 g. What is the density of olive oil in g/cm^3
Molecular and ionic equations, What would be the proper balanced molecular and net ionic equations for each of these neutralization reactions?
If the rod has a diameter of 1000 inches and we want to cut a 1.00 kg section of the rod. How many cm long should it be?
What is the theoretical yield of aspirin since salicylic acid is the limiting reagent. What is the new type of compound formed in this. (i.e. an amide, ect)
Compute the porosity in a hollow cube of length 4R that is packed cubical arrangement with eight spheres with raduii R. If we were to fill the interstices with spheres with radii r, explain what would be the maximum value r can take
Does the body have an impact on the brain? If so, how much? What do you have to back up your position?
Water expands when it freezes. how much work does 100. g of water do when it freezes at 0 degrees celcius and pushes back the metal wall of a pipe that exerts opposing pressure of 1070 atm?
Explain how many ATP molecules are necessary to pump 100 K+ ions out of a cell when the cytoplasmic concentration of K+ is 5 mM the extracellular concentration 150 mM and the membrane potential is constant - 60 mV
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