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While aqueous solutions of cadmium chloride and sodium sulfide are mixed a precipitate of cadmium sulfide forms, leaving soluble sodium chloride in the solution. Include states in your answer.State molecular, Ionic and net ionic equations
What volume (V) of 1.80 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.87? (The pKa of acetic acid is 4.76.)
What mass of ethylene glycol, when mixed with 225 g H2O, will reduce the equilibrium vapor pressure of H2O from 1.00 atm to 0.800 atm at 100 °C?
When is pH = pKa for a monoprotic acid and why. Write the formula for each component in a buffer solution of acetic acid and it's salt.
a dilute solution of benzoic acid c6h5cooh is prepared by adding 7 ml of 1.85 m benzoic acid to a volumetric flask and
If the combustion of this mixture releases 950.0 J of energy to what volume will the gases expand against a constant pressure of 650.0torr if all the energy of combustion is converted into work to push back the piston?
Using butane as your only carbon source, please propose a synthesis to make trans-2-ethyl-3-(1-oxoethyl)oxirane. any common reagent
A chemistry handbook lists the solubility of sodium Iodide as 184 grams per 100mL of water at 25 degrees celsius. How many moles of NaI can be dissolved in 100mL of water at 25 degrees celsius?
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
The frequency of electromagnetic radiation required to promote an electron from n=2 to n=4 in a Bohr hydrogen atom is
a 40 gram sample of water at 25 degrees celcius absorbs 500 joules of energy. what is the final temperature of the water? the specific heat of water is 4.18 joules/g degrees C.
calculate the equilibrium concentrations of all species and the ph in a solution where cooh2 is prepared by mixing
Use the Gibbs phase rule to find the degrees of freedom for the following systems at equilibrium: a. Liquid water in equilibrium with water vapor. b. Liquid water in equilibrium with humid air.
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