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Calculate the [H3O+] and the pH for a buffer that consists of 0.13 M HF and 0.29 M KF. (Ka of HF = 6.8x10^-4)
Calculate the percent ionization of propionic acid (C2H5COOH) in solutions of each of the following concentrations: a) 0.250 M
What mass of CCl2F2 substance must evaporate in order to freeze 135 g of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400.0g of H2O
Find the volume of FeSO4 solution - What volume of 0.200M FeSO 4 solution would be required to react with 20.0mL of 0.250M KMnO 4 according to the following equation?
What volume of this gas must be burned to raise the temperature of 5.3 L of water by 5.0°C? Assume the gas is at 1.0 atm and 298 K.
Calculate deltaS(Jmol^-1K^-1) for oxalic acid and delta S (Jmol^-1K^-1) for the combustion of one mole of oxalic acid.
Harmonic Function Morse Function Lennard Jones Function How do I determine the frequency of an absorption spectroscopy line
What mass of silver chloride will be recovered if excess sodium chloride is added to 500 mL of solution containing 10.79g of Ag+?
Calculate the length in km of a row containing 1 mole of hydrogen atoms laid side to side if diameter of a hydrogen atom =.212 nm?
If a 50.0 g object needs 1,145 Joules to increase its temperature by 10.0 oC, what is its specific heat capacity?
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
How many grams of nickel nitrate, Ni(NO3)2, must be dissolved to prepare 200 mL of a 0.152 M aqueous solution of the salt.
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