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A dilute solution of unknown weak acid was titrated to the endpoint with 28.62mL of 0.1804 M NaOH. The titrated solution was evaporated to dryness as well as the sodium salt of the acid was found to weigh 0.223 grams. Presume the acid had a single titratable proton. Explain what is the molar mass of the acid?
What do we call a molecule that is made in one step in Reaction Mechanism and used up in another step of Reaction Mechanism
Find the molarity of a Ca(OH)2 solution,given that 363 mL of it is neutralized in a titration by 187 mL of 0.0058 M HNO3.
titanium dioxide tio2 is prepared by reaction of ticl4 with o2 at high temperature.ticl4o2 --gt tio22cl2how many
When 0.512 grams of a substance is dissolved in 7.03 grams of naphthalene, the solution has a freezing point of 75 degrees celcius. What is the molar mass of the substance. Kfp for naphthalene is 6.80 degrees celcius/kg/mole.
How many grams of Neomycin sulfate should be added to 320 g of 5% neomycin sulfate ointment to prepare an ointment containing 20% neomycin sulfate
Show that using many small volumes of organic solvent in an extraction from an aqueous phase is more effective than using fewer, larger volumes
Agas company in Massachusetts charges $1.30 for 15.0 cubic ft of natural gas. (a) Convert this rate to dollarsper liter of gas. (b) It takes 0.304 cubic ft of gas to boil aliter of water, starting at room temperature (25 degrees), how much would i..
Explain the mass of helium-4 atom is 6.64648*10-24g as well as each of it's two electrons has a mass of 9.10939*10-28g. Explain what fraction of the atoms mass is contributed by its nucleus
what is the molarity of a solution prepared using the given amount of solute and total volume of solution.
The plant manager would like to dump the wastewater into a nearby river. The local water quality control regulatory agency will allow at most discharge of 30,000 lb/h at a maximum salt content of 0.5%. Draw a flow diagram. Complete a DOF analysis ..
the barometric pressure in a cavern was measured using a mercury barometer. a value of 28.2 inches of hg was obtained.
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 425 cubic centimeters, and total mass is 4.22 kg. What percentage of the spheres are copper
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