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The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved during the neutralization of 655 ml of 1.00 M hydrochloric acid by 1.00 M sodium hydroxide.
calculate the vapor pressure of a solution of glycerol of 265ml in 3.80x10^2ml of H2O at the normal boiling point of H2O
aniline, an organic amine, C6H5NH2, a weak base with Kb of 4.0x10^-10, reacts with water to form its conjugate acid, C6H5NH3^+. write the equation and the base dissociation constant for aniline.
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
A student used 20.0 mL of 0.1035 M NaOH to titrate 20 mL of orange juice. How many grams of citric acid were present in the sample? The molar mass of citric acid, H3C6H5O7, is 192.12 g/mol.
If a first-order reaction has a rate constant of 2.11x 10-1s-1 at a temperature of 22.3°C, what would the value of k be if the reaction temperature was changed to 65.7°C given
Determine the freezing temperature of a 10 mM solution of Formic Acid (FaOH) in Water which also contains 25 mM Na2SO4 and 15 mM Ca(NO3)2. pKa of Formic Acid is 3.75, Kf(H2O)=1.85 (K*kg)/mol
If atmospheric pressure suddenly changes from 1.00 atm to 0.898 atm at 298 K, how much oxygen will be released from 3.10 L of water in an unsealed container?
A buffer is prepared by adding 21.0g of sodium acetate ({\rm CH_3 COONa}) to 520mL of a 0.140M acetic acid ({\rm CH_3 COOH}) solution.
A quantity of oxygen occupies a volme of 19.2L at STP. How moles of oxygen are present?
some workers responding to the explosion at the Chernobyl nuclear power plant were exposed to 5 sv of radiation, resulting in the death for many of them. if the exposure was primarily in the form of y rays with energy of 3.3 x10^ -14 J
A room temperature aqueous solution is 0.10 M in zinc acetate, 0.50 M in strontium acetate and 15.2 M in nickel (II) acetate. At what concentration of carbonate
Give the chemical reactions that show why solutions of Al(NO3)3, Zn(NO3)2, and NH4NO3 have the pH values that you found.
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