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Explain what is the pH of a 1.00 L solution which primarily has 0.051 mol acetic acid and 0.029 mol sodium acetate once 0.006mols of NaOH has been added. Ka for acetic acid is 1.8x10-5. Explain what are the new concentrations of weak acid and weak base?
A 21.10 g sample of liquid ethanol is initially at -36.90 oC. If the sample is heated at constant pressure (P = 1 atm.), how much kJ of energy are needed to raise the temperature of the sample to 100.60 oC.
Which of the bonding forces from the list above would need to be overcome to convert CCl4 from a liquid to a gas? (Enter the letters in order of all that apply, e.g. AB, ABD, ACDE, etc.)
A sample of gas in a balloon has an initial temperature of 22 and a volume of 1610 . If the temperature changes to 58, and there is no change of pressure or amount of gas, what is the new volume, , of the gas?
Determine the value of the equilibrium constant for each of the following reactions. Each reaction is the sum of simpler reactions.
Tank full of water (H2O)is open at the top with the hole near the bottom the area of which is 0.25 m^2 and the cross section area of the tank =1 m^2 determine what is volumetric flow rate out of the hole.
exactly what weight of dry ice is needed to react with 2mmol of phenylmagnesium bromide? would an excess of dry ice
what is the molecular equation, ionic equation, and net ionic equation for magnesium reacting with hydrochloric acid
How would you prepare a 25.0% water in ethyl alcohol solution using 100.0 ml of ethyl alcohol (the density of alcohol is 0.7893 g/ml)
Assuming that N2 obeys the Van der Waal's equation, determine the Boyle temperature of 1 mol of N2 and determine the percent error in the answer knowing that the experimental value of the Boyle temperature
A mixture of Ar and N2 gases has a density of 1.439 g/L at STP. What is the mole fraction of each gas. Express your answers using four significant figures. Enter your answers numerically separated by a comma.
Calculate the amount of heat transferred when 46.0 g of CH3OH is decomposed by this reaction at constant pressure.
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
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