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A solution of 0.312 M KOH is used to neutralize 20.0 mL H3PO4 solution. H3PO4(aq)+3KOH(aq)---------->K3PO4(aq)+3H2O(l) If 30.3 mL KOH solution is required to reach the end point, what is the molarity of the H3PO4 solution?
Devise a version of the van't Hoff equation that applies to vapor pressure by writing the equilibrium constant K for vaporization.
What is the work done by the copper bar on the surrounding atmosphere? The density of copper at 20 degree celsius is equal to 8920 kg/m3.
mercury(II) acetate is alowed to react completely with a solution containing 9.718 g of sodium sulfide, how many grams of solid precipitate will be formed. How many grams of the reactant in excess will remain after the reaction
.4550 g of rock containing douglasite is treated by AgNO3. it took 37.20 ml of 0.1000 M AgNO3 to precipitate all Cl- as AgCl. Calculate the % mass of the mineral in the sample
A 32.85-{g} sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 54.00 mL. The solid and toluene together weigh 58.88 g. The density of tol..
why is the Lineweaver Burke plot superior to the Michaelis- Menton plot for calculation enzyme kinetic values
suppose that 2.00L of solution are made from 150. mg of citric acid, C6H8O7, A. what is the molar mass of citric acid? B. what is the molarity of citric acid in the solution?
Using the following list of normal boiling points for a series of normal hydrocarbons, estimate the normal boiling point for octane, C8H18. Be certain to explain your procedure
What monomers make up the zylon polymer, and how is the monomer made in industrial quantities? Are alternative monomers ever used
Consider all the valence electron pairs of the central atom-both those that are shared in covalent bonds, called bonding pairs, and those that are unshared, called non-bonding pairs or unshared pairs.
Identify the compound: molecular mass 113; gives a positive hydroxamate test; IR: 2237, 1733, 1200 cm-1; 1H NMR: ? 1.33 (3H, t, J = 7 Hz), ? 3.45 (2H, s), ? 4.27 (2H, q, J = 7 Hz). Please draw the structure.
In the reaction of sodium benzoate with hydrochloic ac to form benzoic acid, if 1.29 g of benzoic acid were formed, how many mmol of sodium
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