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A) Calculate thepHat the equivalence point in titrating 0.120Msolutions of each of the following with 8.0×10-2MNaOH.
hydrobromic acid (HBr)
chlorous acid (HClO2)
benzoic acid (C6H5COOH)B) A 20.0-mL sample of 0.150 MKOH is titrated with 0.125 MHClO4 solution. Calculate the pHafter the following volumes of acid have been added.
23.5 mL
27.0 mL
30.0 mL
What partial pressure of dinitrogen monoxide gas is required in order for 0.00280 g of the gas to dissolve in 11.4 mL of pure water. The Henry's Law constant for dinitrogen monoxide gas is 2.4 x 10-2 M atm-1.
when .8436 mole of naphthalenec10h8 a solid is burned in a constant- volume bomb calorimeter at 298k 5150 kj of heat
At -12.0^degrees C (a common temperature for household freezers), what is the maximum mass of sorbitol (C6H14O6) you can add to 1.00 kg of pure water and still have the solution freeze? Assume that sorbitol is a molecular solid and does not ionize..
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution. A. Which salt will precipitate first?
Will the temperature decrease shift the equilibrium toward the reactants or products for a reaction characterized by a positive reaction enthalpy and positive reaction entropy?
Explain what is the most common/easiest method to remove benzoic acid from benzaldehyde. Incorporate some steps and what solvent would be used.
List the major elemental and molecular components of gasoline. Include their chemical formulas.
A key step in the metabolism of glucose for energy is the isomerization of glucose-6-phosphate (G6P) to fructose-6-phosphate (F6P) as shown below.
Explain why the addition of a small amount of base to an acidic buffer solution causes only a small change in the pH of the buffer solution.
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. (Use thermodynamic derivation to support your explanation).
At 25 degrees celsius and 750 mm Hg, 1.05 g of this gas occupies a volume of 0.500 L. What is the molecular formula of the gas?
how many grams of the above product must be used to absorb heat. The emt happy vaporization for ethanol is 850j/g and water is 2360kj
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