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Potassium hydrogen phthalate, KHC8H4O4 (KHP) is often used to standardize solutions of bases. The acidic anion reacts with strong bases according to the following equation:
HC8H4O4-(aq) + OH-(aq) ? C8H4O42-(aq) + H2O( )
0.982 g sample of KHP (this is not potassium-hydrogen-phosphorus) is dissolved in water and titrated to the equivalence point with 26.45 mL of NaOH solution. What is the concentration (M) of the NaOH solution?
Calculate the value of the equilibrium constant for the reaction that occurs when solid sodium oxalate is dissolved in water.
What will be the pH at the equivalence point when a 100 mL sample of 0.25 M NH3 titrated with 0.15 M HCl at 25 degrees C? (Kb for NH3 = 1.8 x 10-5)
Find out What mass of the NaHCO3 reacts with the vitamin C When the tablet dissolves in H2O, it "fizzes" because the reason for this is the CHO3 reacts with the citric acid(C6H8O7 a weak organic acid) and the vitamin C?
The following sequence of reactions is a good way to convert 1-alkylcyclohexene to a 3-alkylcyclohexene. Draw structural formulas showing stereochemistry for each step of the reaction sequence and show why it gives the desired product.
Imagine a unit of charge called the zorg. A chemist performs the oil drop experiment and measures the charge of each drop in zorgs.
What is the hydronium ion concentration of a 0.20 M solution of an acid with a Ka
Based on activation energies and energy changes and assuming that all collision factors are the same, answer the following questions: Which of the following reactions would be fastest in the forward direction
Calculate the radiation dosage (in grays) for an 85-kg person that is exposed for 7.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed and each beta particle has an energy of 1.7× 10-13 J.
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH.
one hundred grams of water is saturated with nh4clat 50 degrees c. according to table g if the temperature is lowered
What volume (L) of 0.250M HNO3 is required to neuralize a solution prepared by dissolving 17.5g NaOH in 350mL of water?
At 80 degrees Celsius, pure liquid A has a vapor pressure of 700 mm Hg and pure liquid B has vapor pressure of 940mm Hg. What is XA for a solution of A and B with a normal boiling point of 80 degrees Celsius
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