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The pH for a 2.6 mol/L propanoic acid solution was 2.24. What is the Ka of propanoic acid, given that propanoic acid is a monoprotic weak acid and does not dissociate readily?
The Ksp for magnesium fluoride is 3.7 x 10-8. The equilibrium is: MgF2(s) ? Mg2+ + 2F-. Calculate the solubility of magnesium fluoride in mol/L.
If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C?
In another experiment it was determined that for each mole of hydrocarbon, 7 moles of oxygen gas are consumed and 5 moles of CO2 gas and 3 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K
Write a balanced nuclear equation for the alpha decay of each of the following radioactive isotopes.
the vapor pressure of an unknown compound at 25 degrees c is 94.6 torr and its enthalpy of vaporization is 30811 jmol.
calculate the binding energy of the 2s electron in iron.the five highest energy peaks in the photoelectron spectrum of
Calculate the pH of the resultant mixtures: a. 10 ml of 0.2 M Ca(OH)2 + 25 ml of 0.1 M HCL b. 10 ml of 0.01 M H2SO4 + 10 ml of 0.01 M Ca(OH)2 c. 10 ml of 0.1 M H2SO4 + 10 ml of 0.1 M KOH
What is the solubility of the following compounds in water and ethanol. ethyl acetate, ethanol, silica, azobenzene, azulene, 4(p-nitrophenylazo) resorcinol, methyl red, bromcresol Green
1)WhenH2(g)reacts withC2H4(g)to formC2H6(g),137kJ of energy areevolvedfor each mole ofH2(g)that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
Using the concentration of CH3COOH (0.8326M) and the equilibrium concentration of H3O+ (OJ = 31.6x10^-6 and milk = 3.16x10^-8), complete the reaction table for vinegar. Then calculate the acidity constant. Please show all work in solving the probl..
An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc(II) nitrate and a silver cathode in contact with a 0.0042 M solution of silver(I) nitrate. What is the emf of this cell at 5°C
A compound X has molecular ion peaks in its mass spectrum at mass 140 and 142, and shows prominent peaks in its IR spectrum at 3150-3000 and 1600 cm^-1.
what would be the ph of a solution of hypoiodous acid hoi prepared by dissolving 144 grams of the acid in 200 ml of
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