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The enthalpy of combstion benzonic acid is commonly used as the standered for calibrating constant volume bomb calorimeters. Its volume has been accurately determine to be 3226.7kj/m. 2.5127 gm benzoic acid are burned in a carorimter the temperatuer rises from 20.84 to 25.67degree. What is the heat capacity of the bomb. Water is 2250gm.
Ligands approaching in a tetrahedral pattern cause some orbitals to be raised in energy. How many orbitals are on the lower energy level?
Explain how a competitive inhibitor inhibits an enzyme and how the effect is different from that of an irreversible inhibitor.
Use the values of Ka1 = 0.056 and Ka2 = 5.4 x 10-5 to calculate the [OH-] in a 0.387 M solution of oxalic acid (H2C2O4). Use E notation and 3 significant figures.
Covert the EU Nitrate standard of 50ppm to its nitrogen content alone. Is the EU standard more or less stringent than the United States regulatory limit
A half-life of phosphorus-32 =14.0 days. starting with six grams of 32P, determine how many grams would remain after 112 days
A volume of 60.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 24.7mL of 1.50 M H2SO4 was needed?
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
How do you find the HETP of a fractionating column given the areas after a gas chromatogram were cyclohexane 6286 and toluene 346. with a ratio being of cyclohexane/toluene.
2Al(s)+3H2SO4(aq) -> Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.5g. What minimum mass of H2SO4(in g) would you need?
A solution of barium hydroxide at 25C is 0.125 M Ba(OH)2. What are the concentrations of hydronium ion and hydroxide ion in the solution
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3
Show two different ways to make methyl propionate, using methanol, propionic acid and other necessary reagents The methanol and propionic acid do not have to both be used in the first step.
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