Equilibrium constant table
You add 1.00 g of a solid weak acid to 100 mL of water, then titrate with 0.100 M NaOH solution. The pH at the half equivalence point is 4.22. Which of the acids in the Weak Acid Equilibrium Constant table most likely matches your unknown?
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Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 1.8 multiplied by 10^-5) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
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How many grams of ice at -20.5 degrees C can be completely converted to liquid at 16.3 degrees C if the available heat for this process is 4.11×103 kJ?
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The 6 x 12 in timber beam has been strengthened by bolting to it the 5 x ? in steel reinforcement shown. The modulus of elasticity for wood is 1.8 x 106 psi and for steel is 29 x 106 psi.
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