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Explain the effect on pH increase, decrease or no change that results from each of the subsequent additions
A) Potassium hypochlorite KClO to an aqueous solution of hypochlorous acid HClO
B) Hydrochloric acid HCl to an aqueous solution of sodium acetate NaC2H2O2
C) Sodium nitrate, NaNO3 to an aqueous solution of nitrous acid, HNO2
the rate law for a hypothetical reaction is rateka2. when the concentration is .10 molesliter the rate is 2.7 times
An aqueous solution containing 2.0M of AgNO3 is slowly added from a burette to an aqueous solution that holds 0.01M Cl- as well as .01M Br-. Is separation of the two ions by selective precipitation feasible? Assume 10^-5 M as the complete removal ..
If 50.0 ml of the solution prepared in 6 is reacted with an excess of sodium chloride, how many grams of silver chloride should be produced.
A solution of sodum hydroxide is standardized against potassium hydrogen phthalate (molecular mass = 204.224 g mol-1). From the following data, calculate the molarity of the NaOH solution.
a solution contains 0.115 mol h2o and an unknown number of moles of sodium chloride. the vapor pressure of the solution
A 50% by mole solution of ethanol and water is prepared. Both their partial volumes do not equal their pure partial volumes. The total volume is observable, however, there are two unknowns. Using an approximation how can two partial volumes be mea..
A voltaic cell is constructed from a standard Mn2+|Mn half cell (Eored = -1.180V) and a standard Hg2+|Hg half cell (Eored = 0.855V).
Explain how many ATP molecules are necessary to pump 100 K+ ions out of a cell when the cytoplasmic concentration of K+ is 5 mM the extracellular concentration 150 mM and the membrane potential is constant - 60 mV
Consider the following reaction: 2H2O (g) + 2SO2 (g) 2H2S (g) + 3O2 (g) a reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilbirum concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10^-6
write ground-state electron configurations for these ions, which play important roles in biochemical processes in our bodies. (Use a noble gas core abbreviation)
The vapor pressure of water at 20.0°C is 17.5mmHg . If the pressure of a gas collected over water was measured to be 453.0mmHg . What is the pressure of the pure gas
if your air conditioner is more than several years old it may use the chloroflurocarbon ccl2f2 as the heat transfer
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