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What is the concentration of acetate when 500mL of 0.47M acetic acid is added to 500mL of a pH 5.7 solution? Ka of acetic acid = 1.8 x 10^-5
oleci acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of Hydrogen gas are formed when 48.7g of sodium are added to water?
Determine whether the oxidation of FeO(s) to Fe2O3(s) occurs spontaneously at 298K according to the reaction below by calculating delta s universal.
Draw the mechanism for each reaction you will do today. Pyridinium tribromide releases molecular bromine, so molecular bromine is the brominating agent.
What are differences between spectrum and continuous spectrum? Give an example. What does it mean when we say that the energy levels in the Bohr atom are quantized?
Working with partition function and entropy what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K?
One molecular form of elemental sulfur is a ring of eight sulfur is a ring of eight sulfur atoms. As one molecule of this element is burned to make sulfur trioxide, how many oxygen molecules are used?
An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction
For the reaction SO3+H2O=H2SO4 calculate the percentage yield if 600 g of sulfur trioxide react with excess water to produce 475 g of sulfuric acid
Propanoic acid has a Ka of 1.4 x 10^5. If we make a solution 0.100 M in propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
what volume will it occupy? Assume constant pressure. Note the temperatures are given in two different units. Be sure to change each to deg K first.
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