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Does reagent grade sodium chloride affect the pH of an organic solution? It seems to have changed the pH of my solution slightly. What is the explanation for this?
sketch a graph of potential energy versus dihedral angle about the c-c bond of 12-dichloroethane. show the energy
Find the mass fraction and mole fraction of each component, the molar mass of mixture, and it's gas constant.
Calculate the molar mass (g/mol) of the element to three significant figures.
If 145 mL of 1.10 M KCl are diluted to 515 mL, what is the molarity of the final solution?
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 18.81 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution
The rate constant of a reaction is 2.6*10-3s^-1 at 25 c, and the activation energy is 33.6kJ/mol. What is k at
An insulated tank is divided into two equal parts. Both halves contain the same ideal gas but one is at 300K and 2 bar while the other one is at 1 bar.
The iron-chromium voltaic cell utilizes the following reaction with a measured potential of 0.30 V. What is Î"G ° for this reaction?
Determine the Ka value of acetic acid at 105 degrees C from the following data: A 0.3 Molar aqueous solution of acetic acid shows a pH of 2.642 at 105 degrees C. You can use the approximation formula here because the concentration of the acetic ac..
Draw the molecule by placing atoms on the grid and connecting them with bonds. You do not need to show hydrogen atoms connected to carbon atoms.
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
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