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A buffer is ready by mixing 200mL of 0.450 M HCL and 0.500 L of 0.400 M sodium acetate. Explain what is the pH Ka of CH3COOH = 1.8 x 10-5?
Write a single equation to show the direct conversion of Mg3N2 into MgO as the exclusive magnesium-containing product
Sylvanite is a mineral that contains 28.0 gold by mass. How much sylvanite would you need to dig up to obtain 50.0 of gold
A certain brand of antacid has a dosage that contain 400 mg Mg(OH)2. How many mmoles of HCl can be neutralized by one dose of this antacid?
He decides to run an FTIR on the resultant powder on the cold finger apparatus. WHat functional group would clearly cofiirm that the white powder is indeed caffeine and not catechin?
Write a balanced chemical reaction for the reduction of dissolved copper ion by Zn (s) to copper metal
What are the major species present in 0.250 M solutions of each of the following acids. Calculate the pH of each of these solutions.
the cu is drawn into wire whose diameter 2r is 8.50mm if the density of copper is 8.94 gcm 3 then determine how many
Determine the required CSTR volume, V (in gallons), and hydraulic residence time, in V/Q (hours), to comply with the current industrial pretreatment permit limitation for phenol
Assuming that the specific heat of the solution is 4.18 KJ and that the calorimeter itself absorbs a negligible amount of heat, calculate delta H in kilojoules for the reaction K2O+H2O->2KOH
In class we preformed an equilibrium constant lab measuring an equilibrium constant for an esterification reaction between carboxylic acid and an alcohol to form an ester and water. The reaction was between acetic acid and n-propyl alcohol to form..
Calculate the concentration of oxygen in mg/L required to completely oxidize the following organic compounds. Use 500 mg/L for the concentration of each compound.
what are the boiling point and freezing point of a 2.47m solutionof naphthalene in benzene? the boiling point and
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