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Barium hydroxide, often used to titrate weak organic acids, is obtained as the octahydrate, Ba(OH)2. 8H2O. What mass of Ba(OH)2. 8H2O would be required to make 500.0ml of a solution that is 0.1500 M in hydroxide ion.
A 40.0ml sample of 0.150 Ba(OH)2 is titrated with 0.400M NH)3 . Calculate the pH after the addition of the following volumes of acid, and plot the versus milliliters of added.
Volume of a certain mass of a gas is desired to be decreased by 25% of the initial volume of 10l at 1.5 bar and room temprature by what percentage the pressure should be incraesed
Mg +2HCl-> MgCl2 + H2 what volume of Hydrogen at STP is produced from the reaction of 50.0g and the equivalent of 75 g of HCl? Also, How much of the excess reagent is left over?
it was determined in a calorimetry experiment that a piece of copper metal of 92.0 gram released 1860 joules of heat to
determine the expression for the rate of the reation in terms of the change in concetration of each of the reatants and products.
32.00 mL of a 0.2500 M sodium hydroxide solution exactly neutralized a solution containing 0.5000 grams of a soluble solid acid that yields two moles of hydrogen ions per mole of acid when dissolved. Calculate the molar mass of the acid.
Write a balanced equation for the neutralization of each of the following: a)H3PO4(aq) and NaOH(aq) b)HI(aq) and LiOH(aq) c)HNO3(aq) and Ca(OH)2(s)
Problem- The flask shown here contains 0.761 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.160 M NaOH. 1) What volume of base is needed to reach the end point of the titration
The citric acid cycle has a catabolic role, oxidizing acetate into CO2 and generating energy, and an anabolic role. Many of the citric acid cycle intermediates serve as precursors for the biosynthesis of larger molecules. Move each of the followin..
Determine the work done by the evolution of H 2 in the subsequent reaction on the surrounding atmosphere with1atm pressure and at 25 degree celsius temperature and express your answer in Joule
Draw the conj acid of this base and use its structure to explain why it is so basic (resonance forms may help). The pKa of the conj acid is about 26. What is the pKb of the free base?
How many grams of the excess reactant remain after the limiting reactant consumed? 1.05 g of NaHCO3 & 1.05 g of H3C6H5O7 react.
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