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A 100.0 mL aliquot of 0.100 M weak base B (pKb = 5.000) was titrated with 1.00 M HClO4. Find the pH after 1.3 mL of acid is added. Then Find the pH after 11.1 mL of acid is added.
You use a properly calibrated explosimeter to measure the flammable hazard inside a tank that contained toluene and may still have some residual product a. inside.
A very long insulating cylindrical shell of radius 6.70cm carries charge of linear density 8.60Nc spread uniformly over its outer surface.
Rank each of the following compounds in decreasing order of reactivity towards Friedel-Crafts alkylation. Most reactive = 1; if a compound will not react, rank it as "non" rather than assigning a numerical value.
Nicotine, a component of tobacco, is composed of C, H, and N. A 12.075 mg sample of nicotine was combusted, producing 32.757 mg of CO2 and 9.391 mg of H2O. What is the empirical formula for nicotine?
Consider a solution of carbonic acid, H2CO3. (a) Calculate the H3O+ ion concentration of a 0.15 M solution of carbonic acid.
Plaster of Paris, CsSO4 x XH2O, is a fractional hydrate; that is, one water molecule attaches to more than one formula unit. If a 2.002-g sample has a mass of 1.878 g after hearing, find the water of crystallizatioin (X), and write the formula for..
Calculate the heat that must be supplied to 0.104g of Ne(g) at 0.250 atm to raise its temperature from 22.0 degree Celsius to 60.0 degree Celsius at
Create a flow chart of the process to create a lewis structure. when is an expanded octet acceptable and why
Consider the following equilibrium reaction that has achieved a state of dynamic equilibrium. In a 3.00 L container, the following amounts were determined at 400ºC: 0.0420 mole N2, 0.516 mole H2 and 0.0357 mole NH3. Determine the value of Kc
a cylindrical glass tube 13.0 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 107.5g. Calculate the inner diameter of the tube in centimeters.
How many grams of NaOH are in a 225.0 mL sample of a 2.5 M solution of NaOH? (Molar mass of NaOH is 40.0 g/mol)
What mass of iron (III) chloride in g is present in 2.50 ml of this solution
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