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Calculate the expected pH of a solution at the equivalence point using [NaOH] = 0.0997M and [acetic acid] = 0.1048M. The Ka for acetic acid is 1.8 x 10-5
Calculate the pH of the 0.20 M NH3/0.24 M NH4Cl buffer. B)What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 55.0 mL of the buffer?
Calculate the mixing ratio (ppbv) of NO2. Assume T=20 degrees Celsius = 293 K; P = Atmospheric pressure. MW of NO2 = 44g/mol.
In a solution, the solvent is higher or lesser in quantity? 8) A soft drink contains 11.5% sucrose by mass what volume of the soft drink solution in milliliters, contains 85.2 g of sucrose.
what are the equilibrium concentration of N2 C. If the initial concentration of NO is 0.177M , what are the equilibrium concentration of O2
The pressure exerted on a 240 mL sample of hydrogen gas at instant temperaure is increased from .428 ATM to.724 ATM. What will the final volume be for the sample be?
what mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepar a 0.0500 molal solution of ethanol
Determine the amount of heat given off when 1.26 x 104 g of NO2 are produced express your answer (in kJ)?
caproic acid contains carbon hydrogen and oxygen. combustion analysis of a 0.450g caproic acid sample gives 0.418g of
if 1.0 volumes of 1.0 m solutions of sodium hydroxide and lead ii nitrate are mized how many moles of product are
gas cylinder a has a volume fo 48.2 l and contains n2gat 8.35 atm at 298 k. gas cylinder b has an unknown volume
For supercritical carbon dioxide, predict the effect that the following changes will have on the effect that the following changes will have on the elution time in an SFC experiment.
How many amps are required to produce 72.5 g of potassium metal from a sample of molten potassium chloride
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