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Explain a compound contains only carbon, hydrogen and oxygen. Combustion of 0.01068 g of the compound yields 0.01601g CO2 as well as 0.00437g of H2O. The molar mass of the compound is 176.1g/mol. Define what are the empirical and molecular formulas of the compound?
Calculate the wavelength, in naniometers, of the spectral line produced when an electron in a hydrogen atom undergoes
A 97.0 mL sample of 0.0200 M HCl is titrated with 0.0400 M RbOH solution. Calculate the pH after the following volumes of base have been added. (a) 22.3 mL pH = (b) 47.5 mL pH = (c) 48.5 mL pH = (d) 49.5 mL pH = (e) 94.1 mL pH =
an object made of aluminum has a mass of 8.37 gram. when it was placed in a graduate cylinder containing 20.0 milliter of water, the water level rose to 23.1 milliter. calculate the density and specific gravity of the object.
Both the meta- and para- forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phenylene diamine, and why is the ortho-form of the diami..
Selective precipitation, fractional precipitation, amphoteric precipitate solubilization, competitive equilibrium solubilization: anion protonation, competitive equilibrium solubilization
Does GLC analysis allow you to skip the IR analytical method? Compare the two methods for advantages and disadvantages.
some hydrated metal chlorides will decompose upon heating, evolving hydrogen chloride along with water. How could one determine if this was happening to a sample of a particular metal chloride hydrate
Calculate the millimoles of copper (II) sulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4, 0.1 M NiF2, 0.2 M Rb2CO3, 0.01 M Sr(OH)2, , 0.03 M ScBr3.
Calculate the molar solubility (often defined by s) of magnesium hydroxide in pure water. Ksp = 5.61 x 10?12. Do not forget to print a balanced dissociation equation. b. (7 points) Calculate the molar solubility of magnesium hydroxide in 0.050 mol..
Calculate the mass of nitrogen dissolved at room temperature in an 96.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
what is steam distillation and why is it a preferred technique to purify high boiling liquids that are water-insoluble
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