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Find the equilibrium concentrations of \rm A and {\rm B} for a = 1 and b = 2. Assume that the initial concentration of \rm A is 1.0 {\rm M} and that no {\rm B} is present at the beginning of the reaction. kc=2.3
0.90 g of hydrogen chloride (HCl) is dissolved in water to make 5.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
Acetic acid is a weak monoprotic acid. it is the active ingredient in vinegar. if the initial concentration of acetic acid is .200 M and the equilibrium concentration of h3o+ is .0019 M, calculate Ka for acetic acid.
Write an overall, balanced equation for the reaction of Na2SO3 with CH3CO2H, and name the reactants and products.
The concentration of a commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9 M. In 100 grams of solution there are 1.11 mol of HNO3. Calculate the VOLUME of 100 grams of the solution
A balloon is filled to a volume of 5.0 102 mL at a temperature of 29.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 102 K. What is the final volume of the balloon?
A 23.45g piece of iron and a 29.95g piece of gold at 100.00C were dropped into 530ml of water at 16.05C. The molar heat capacities of iron and gold are 25.19 (j/mol x C) and 25.41 j/(mol x C). respectively. What is the final temperature of water a..
Using the Henderson-Hasselbalch Equation calculate the PH of a solution containing acetic acid and ten time as much sodium acetate. What is the PH of a solution containing sodium acetate and ten times as much acedic acid
For which of the following species is resonance an important property: HONO, HONO2, N3-, NO2-, NO2
Most electrical energy in the United States is generated in large-scale power cycles through conversion of thermal energy to mechanical energy, which is then converted to electrical energy
For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
Propanoic acid, HC3H5O2, ionizes in water. A 0.496 g sample of sodium propanoate, NaC3H5O2 (molar mass: 96.07 g/mole) is added to a 50.0 mL sample of a 0.265 M solution of propanoic acid. Assuming that no change in the volume of the solution occur..
A mixure of gases collected over water at 14 degrees celciushas a total pressure of 0.981 atm and occupies 55mL. How many grams of water escaped into the vapor state
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