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Write equations showing how each of the following weak bases ionizes water to form OH- a) HCO3- b) CH3NH2 Identify all of the phases
Half an alka seltzer tablet is dissolved and completely reacted in 25mL of HCL, and the gas produced displaces 0.240L of water from a secondary flask.
Magnesium reacts with iron(III) chloride to form magnesium chloride and iron. 3Mg(s) + 2FeCl3(s) => 3MgCl2(s) + 2Fe(s)
Draw the structure(s) of the carboxylic acids with the molecular formula C5H10O2 that contain a branched carbon chain.
In an equilibrium mixture the partial pressures of SO 2 and O 2 are 0.125atm and 0.460atm , respectively. What is the equilibrium partial pressure of SO 3 in the mixture?
Determine the Keq for the reaction of benzoic acid with 4-nitroaniline.
Determine the molar internal energy (kJ/mol) of HCl (B = 10.59 cm-1 and ? = 2886 cm-1) under standard thermodynamic conditions. For the vibrational part, use N = nNa.
Arsenic Acid (H3AsO4) has Ka values of 2.5*10^-4, 5.6*10^-8, and 3*10^-13. What is the concentration of the HAsO42- dianion in a solution
Describe a common buffer system and elution method in ion exchange chromatography. What are the salt ions in the elution buffer good for
Ethanol (CH3Ch2OH) the intoxicant in alcoholic beverages, is also used to make other organic compounds. In concentrated sulfuric acid, ethanol forms diethyl ether and water.
A single-stranded RNA phage replicates in E. coli with no DNA intermediates. The following experiments were performed to clarify the phage's mode of replication.
Which of the following statements is true? a. The critical temperature must be reached to change liquid to gas. b. To melt a solid at constant pressure, the temperature must be above the triple point.
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid,
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