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Oxyanions of phosphorus are buffer components in blood. For a KH2PO4/Na2HPO4 solution with pH = 7.40 (pH of normal arterial blood), what is the buffer-component concentration ratio?
When the temperature is 100 °C, find the mole fraction of benzene in the vapor and liquid phases and the ratio of total moles in vapor to total moles in liquid.
Given the energy of a diatomic molecule with masses m1 and m2 constrained to move along the x axis. The force constant of the bond connecting the two atoms is k.
Provide the name(s) for the secondary alcohols with the chemical formula C6H14O that have a 5-carbon chain
the solid fuel in the booster stage of the space shuttle is a combination of nh4clo4 and aluminum powder. the reaction
A latex balloon, inflated to an excess pressure of 1kPa and a radius of 30cm, is attached to a smooth nozzle, initially stoppered. The stopper is removed, and the balloon deflates in 5 seconds.
Consider the reaction: CaCO3(s)===CaO(s)+CO2(g) An equilibrium mixture of this reaction at a certain temperature was found to have [CO2] = 0.478M. What is the value of the equilibrium constant at this temperature
If a gas system at 25oC has a pressure of 23.0 atm, what pressure will the system change to if the temperature rises to 35.0oC?
Sodium thisulfate, Na2S2O3, is used as a fixer when developing photographic film. What is the mass in grams of Na2S2O3 needed to make 100ml of a 0.25 solution?
What is the pH of a buffer that results when 0.50 mole of Na3PO4 is mixed with 0.75 mole of HCl and diluted with water to 1.00 L? The acid dissociation constants for phosphoric acid
Identify the limiting reagent for the given combination of reactants. Calculate how many grams of whatever substance will be in excess and how many grams of HF will be made.
Initially, the left compartment contains 1.0mol of N2, the middle contains 3.0 mol of O2, and the right contains 4.0 mol of H2 at 298 K. Calculate the Gibbs energy and entropy of mixing when the partitions are removed.
How would I do this? A lactic acid/lactate ion buffer solution contains .22 M HC3H5O3 and .80 M C3H5O3- , respectively. The Ka value of lactic acid is 1.4 x 10^-4. calculate the pH of this buffer
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