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To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 24.7 L of 5.25 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution? 4 significant figures.
How many moles of Na3C6H5O7 can be produced if one tablet containing 0.0164 mol of NaHCO3 is dissolved?
Calculate the work in kilojoules done during a synthesis of ammonia in which the volume contracts from 8.8L to 4.3L at a constant external pressure of 46 atm
How many grams of dry NH_4Cl need to be added to 1.60 of a 0.700 solution of ammonia, , to prepare a buffer solution that has a of 8.98. for ammonia is.
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl. Kb of CH3NH2 = 3.7 10-4.
a 1l flask is filled with 1.00 g of argon at 25 c . a sample of ethane vapor is added to the same flask until the total
NiCl2(aq)+ 2NaOH(aq)---> Ni(OH)2(s)+ 2NaCl(aq) how many grams of Ni(OH)2 are produced from the reaction of 35.0 mL of a 1.75M NaOH solution and excess of NiCl2.
Write a detailed mechanism for the reaction of salicylic acid with acetic anhydride, showing clearly the function of the catalyst, sulfuric acid.
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 * 10-5]
Use the ksp values to calculate the molar solubility of each of the following compounds in pure water BaSO4(ksp=1.07x10^-10) PbCl2(ksp=1.17x10^-5) Ni(0H)2(ksp)5.48x10^-16
Which of the following enzymes is used in both glycolysis and gluconeogenesis? A. hexokinase B. pyruvate carboxylase C. malate dehydrogenase D. triose phosphate isomerase E. isocitrate dehydrogenase
compute the ph of a solution made by mixing eighty grams of nach3coo to 39 grams of ch3cooh and adding in h2o to
List and describe briefly the 2 methods which are used by drug companies to discover lead compounds
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