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calculate the concentration of an NaOH solution if 25.0ml of the solution is needed to neutralize 17.5ml of a 0.419M HCL solution
Write a balanced equation for the diazonium salt 1-naphthol and aminobenzenesulfonic acid (para structure). Draw a possible structure
Water in an enclosed vessel at 17°C contains a concentration of dissolved oxygen of 6 mg/L. At equilibrium, determine the concentration of oxygen in the space above the water in molal fraction. and the total pressure in the vessel. Henry's law con..
A Si wafer is treated in phosphorus vapor at 1000o C so that the phosphorus concentration at the surface is kept at the solubility limit of 1021/cm3.
For a reaction of hydrogen with iodine, the rate constant is 2.45*10^-4 L mol-1 s-1 at 302 C and 0.950 L Mol-1 s-1 at 508 C.
A solution is made by dissolving 0.545 mol of nonelectrolyte solute in 817g of benzene. Calculate freezing point and boiling point of solution.
H3PO4 is a tripotic acid with a ka1=7.5x10^-3, ka2=6.2e-8 and ka3=4.8e-13. What is the value of K for H2PO4 PO4^3- + 2H+
What is the freezing point of a solution of aluminum chloride that contains 42.0 g AlCl3 dissolved in 530. g of water?
Calculate the molar enthalpy of combustion of cinnamaldehyde (delta H comb) (in kilojoules per mole of cinnamaldehyde).
The final partial pressure of NOBr was 2.5 atm after the following equilibrium was established: 2NOBr(g) 2NO(g) + Br2(g). What is the value of Kp
When 9.00 grams of Al react with an excess of H3PO4, 30.0 grams of ALPO4 are produced.What is the percentage yeild of this reaction.
An aqueous solution containing 0.18 M of unknown base has a measured pH equal to 8.27. What is the value of pKb for the unknown base?
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
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