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A buffer solution contains 0.71 mol of boric acid (H3BO3) and 0.53 mol of sodium dihydrogen borate (NaH2BO3) in 4.00 L. The Ka of boric acid (H3BO3) is Ka = 5.8e-10. pH of buffer solution?
825grams of NO are produced from the reaction of 500grams of NH3 with excess oxygen, what is the percent yield?
Using data from the Appendix, calculate the temperature where Keq = 1.00. You may assume that deltaH0 and deltaS0 are independent of temperature.
Calculate the concentration of ethanol in wine in terms of mass percent and molality. mass percent? answer in % molality? answer in mol/kg
A compound A (C22H27NO) is insoluble in acid and base but reacts with concentrated aqueous HCl and heat to give a clear aqueous solution from which, on cooling, benzoic acid precipitates.
explain what a compound is, and give the names and formulas for 10 compounds containing your your chosen element. When 41.8 mL of 0.4731 M strontium hydroxide reacts with 26.1 mL of 0.2596 M cobalt(III) sulfate, two precipitates can form. Assume vo..
Initially, .500 atm of H2 and .500 atm I 2 are mixed in an evacuated 1.0 L flask. The system is allowed to come to equilibrium and it is found tocontain 0.368 atm HI. What is the equilibrium partial pressure of I2 for the reaction shown below
how many millimeters of 5M NaOH are needed to neutralize 40mL of 2M H2SO4
Calculate the pressure exerted in the closed end of an apparatus similar to that depicted in Figure 1 if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3cm.
what is the maximum number of grams you could obtain if you recrystallize 28 g of cholesterol from 100 mL of methanol
Calcium hydroxide and sulfuric acid can react to produce calcium bisulfate and water. When 0.0720 mol of sulfuric acid are reacted with 0.0240 mol of calcium hydroxide, how much calcium bisulfate, Ca(HSO4)2, will be produced?
What is Nitroglycerin's molar mass if the addition of 0.454 g of nitroglycerin to 100.0 g of benzene changes the solution's vapor pressure to 94.85 mm Hg?
salicylic acid with methanol to yield methyl salicylate why wouldnt you use a strong base like sodium hydroxide?
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