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What are the concentrations of acetic acid and acetate ion in 0.35M acetate buffer,pH 4.60? the pKa of acetate is 4.76.
3.60 g of liquid methanol ch3oh is placed in an empty 20.0 l container at 45.0degc. if the volume of the container is
Potassium iodate, KIO3, and bleach's hypochlorite ion, ClO negative, are oxidizing agents. What do they oxidize in this experiment
A flask has a mass of 78.16g when empty and 593.56g when filled with water. When the same flask is filled with concentrated sulfuric acid, its mass is 1026.57g. Calculate the density of concentrated sulfuric acid.
Using the diagram below to help visualize the dilution process, calculate the grams of copper in the Jefferson nickel used to make the initial solution.
Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of a 1.50 mg mosquito moving at a speed
Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298K.
Fluoridation is the process of adding flourine compounds to drinking water to help fight tooth decay. A concentration of 1ppm of flourine is sufficient to the purpose
Write the formula for each of the following compounds, being sure to use brackets to indicate the coordination sphere.
The osmotic pressure of solutions of polystyrene in toluene were measured at 25?C and the pressure was expressed in terms of the height of the solvent of density 1.004 g cm-3.
Distinguish between which are aromatic compound given multiple structures, How can you tell the difference between which set of given compound structures would have highest resonance energy
The solubility of CO2 in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility under atmospheric conditions. (The partial pressure of CO2 in air is 0.0003 atm.) Assume that CO2 obeys Henry's law.
A brand of lunchmeat contains 0.11% by mass of a preservative, sodium benzoate, C6H5COONa. Health Canada recommends a an upper level intake of Na to be 2300 mg
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