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These are characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) (1a) The initial pH : (1b) The volume of HI(aq) required to reach the equivalence point : (1c) The pH at the half-neutralization point. (1d)The pH at the equivalence point.
Calculate the percent enantiomeric excess of the contents of the bottle labeled as just menthol. For the purchased sample what percentage of (-)-menthol is indicated by this measurement?
In 1.00 atm of pure oxygen, the solubility of O2(g) in water is 1.26 x 10^-3 M at 25.0 degree C. The mole fraction of oxygen in air is 0.210. If the atmospheric pressure is 0.979 atm, what is the solubility of oxygen in air at 25.0 degree C?
What is the solubility of MX3. MX3 M3+ + 3X1- (Ksp = 2.00e-09) a) in water solubility = M b) in 0.11 M KX solubility = M c) in 0.16 M M(NO3)3 solubility = M
Fiber is an indigestible cellulose product that passes through our system without getting metabolized. If your burned food contained a lot of fiber, how would you expect your calorie value to the "posted" calorie value on the box
In one experiment, when 112 grams of calcium oxide was mixed with 224 grams of ammonium chloride, 16.3 grams of ammonia was produced. What is the percent yield of ammonia in the experiment
Methane is completely burned with 20.0% excess air, with 25.0% of the carbon going to CO. What is the partial pressure of CO in the stack (exit) gas if the gas exits at a pressure of 740 mm Hg and a temperature of 300°F
What volume (V) of 2.20 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.26? (The pKa of acetic acid is 4.76.)
Describe and explain four ways in which and industrial chemist could increase the yield of nitrous oxide.
aqueous solution has an osmotic pressure of 6.35 torr at 23.1 C. What is the molar mass of the protein.
the iron oxide reacts to form water vapor and Fe(s) but aluminum oxide remains unreacted. If the residue following heating weighs 1.6446g determine the wight percent of iron oxide in the original mixture.
3 Suppose you added an additional 50 ml of water to a separatory funnel containing a compound distributed between 50 ml of ether and 50 ml of water.
why is sebacic chloride converted to sebacoyl chloride to make nylon polymer. What would the product be if hexanediamine reacted directly with sebacic acid
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