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For a fully protonated benzoic acid in solution give the Henderson-Hassalbach equation and calculate pH
Calculate the pressure of 4 g of nitrogen gas in a 1 L container at 20.0 ?C.
An oxidation-reduction happens in any electrochemical cell; voltaic or electrolytic. (look these terms up in your general chemistry text if you don't remember them.)
A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
Which of the following would be expected to be the most stable carcocation. Using good scientific terminology with the aid of structures/equations, clearly explain your answer.
how many moles of magnesium oxide are produces by the reaction of 3.82g of magnesium nitride with 7.73g of water? how many grams of excess reactant is left over?
Calculate the energy produced when 15 grams of liquid methanol (CH3OH) is completely burnt in air to produce carbon dioxide gas
A certain second-order reaction (B-> Products) has a rate constant of 1.80×10^-3 M^-1xs^-1 at 27C and an initial half-life of 216 s . What is the concentration of the reactant B after one half-life?Express the molar concentration numerically.
5 mL 1 M HCl and 10 mL .005 M iodine. If the reaction order is zero with respect to iodine, how long will it take for the iodine color to disappear?
Calculate the equilibrium constant for each of the reactions at 25 ° C .O 2 (g)+2H 2 O(l)+2Cu(s)→4OH - (aq)+2Cu 2+ (aq) Express your answer using one significant figure.
A 5.50 g sample of an unknown is dissolved in 251. g of benzene. The freezing point of the solution is 1.02 C below the normal freezing point of pure benzene.
calculated was contained in 23.80 mL of KMnO4 solution. calculate the molarity of the KMnO4 solution.
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
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