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1. When aqueous HCl neutralizes benzoate anion, one of the actual acid species present is the hydronium ion, H3O+. Which is the more prevalent acid, HCl (pKa = -2.2) or H3O+ (pKa = 1.74)? Write an equation that shows how H3O+ forms from HCl.
Calculate the pH during the titration of 32 mL of 1.149 x 10-1 M NaOH with 1.161 x 10-1 M HBr solution after the following additions of acid.
Which salt would make an acidic solution when dissolved in water a. rubidium diiodide b. aluminum tribromide c. potassion fluoride d. calcium sulfate Which would produce a basic solution in water
Semi-Empirical Expression for a Dilute Real Solution, Starting with the definition of osmotic pressure
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision
The enthalpy of combustion of methane, Ch4, is -890 KJ/mol. If the gas flow rate of the methane to the burner of a stove is 5 L/min at 25 degrees celsius and assuming complete heat transfer from combustion
We place the 2.00M HCl into the buret tube. Next we place 30.0 mL of the KOH unknown Molarity solution into a small flask and add some phenolphthalein indicator turning the solution an intense pink color. When we titrate exactly 32.0 mL of the 2.0..
an auto mechanic spills 90. ml of 2.6 m h2so4 solution from a rebuilt auto battery. how many milliliters of 2.5 m
A tank having a volume of 1000 ft3 contains 22 lb of CO2, 46 lb of O2 and 154 lb of N2. What pressure will be indicated by a pressure gage attached to the tank if the gas is at ambient temperature (80°F)
If the temperature probe is accidentally calibrated incorrectly and at 0.0C it reads -500. C, what temperature in Celsius will the probe read at 52. F
draw a lewis strucutre for the molecule n4o. spectroscopic analysis of the molecule reveals that the nitrogen-oxygen
The density of silver is 10.5g/cm3 what is the volume im cm 3 of an ingot of silver with mass 0.743 kg. If this sample of silver is a cube how long in each edge in cm
Dalton law of partial pressure - The partial pressure of oxygen is maintained at 0.20 atm at this depth
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