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A factory produces an aqueous waste that contains 20 mg/L calcium and collects the waste in 44gallon drums. One EDTA complexes one metal atom. Explain what mass of EDTA(C10N2O8H16) would require to
When the tennis ball and racket are in contact for 7.00, determine the average force which the racket applies on the ball?
Determine the numbers of moles of carbon dioxide is contained in a 240.-mL can of the soft drink? A soft drink is made by dissolving the carbon dioxide gas at 3.00 at min a flavored sugar solution
If 40 N force, parallel to the incline and directed up the incline, is exerted to a crate on a frictionless incline which is 30 degrees over the horizontal, the acceleration of the crate is around 2
What products would you expect to form when tetrahydrofuran is treated with excess hydroponic acid (HI ) if 3-bromo-1-propanol is treated with NaOH, a compound of molecular formula C3H6O is formed.
Write down a suitable mechanism for the cleavage of butyl isopropyl ether with the HI at 100 degrees C to produce the exclusively 1-iodobutane and isopropyl alcohol. Discuss why isopropyl iod
As an electron in a 1-dimensional box having length 0.600 nm jumps among two energy levels, a photon of energy 8.36 eV is emitted. Find out the quantum numbers of the two levels?
Determine the mole fraction of sulfuric acid in an aqueous solution which is the 4.00 M sulfuric acid, where the density of the solution is 1.250 g/ml.
An interstellar probe is sent to the star Vega that is 25.3 light years away. It travels most of the distance at a speed of around 0.960 c, as calculated from the Earth.
Explain what product would you expect to obtain from reaction of one equivalent of propane with phthalicanhydride?
Coffee is shipped in 101-pound burlap bags. Company has 51 bags of colombian beans and 31 bags of brazilian beans on hand. How many pounds of every blend must they produce to use all available beans
The allowed energies of the quantum system are 1.0 eV, 2.0 eV, 4.0 eV and 7.0 eV. Determine the wavelengths which appear in the system's emission spectrum? (Answer must be in nanometers)
In an experiment a point is made that the formation of the a zoo compound is a slow reaction, but that the rate is increased by raising the ph of the solution. Why is this necessary? In other words,
A closed organ pipe is open at one end and closed at the other end. Determine its basic and first overtone frequencies, if the temperature is around 18 C? The length of the pipe is around 35 cm? De
Methyl Orange is an acid-base indicator. In dilute solution at ph greater than 4.4, it is yellow. Illustrate a structure of the species that is formed at the lower ph of the acid proton adds to the
An electron confined in a 1-dimensional box is viewed, at different times, to encompass energies of 12 eV, 27 eV and 48 eV. Determine the minimal length of the box in nanometers?
Why is nodiacetylferrocene produced in which both acetyl groups are on the same aromatic ring? In the formation of diacetylferrocence, the product is always the one in which each ring is monoacetylate
X rays diffract from the crystal in which the spacing among atomic planes is around 0.171 nm. The second-order diffraction takes place at 41.0 degrees. Determine the angle of the first-order diffrac
Such a star could be thought of as a huge atomic nucleus. When a star of mass of around 1.4 x 1.99 x 10^30 kg collapsed into neutrons (mn = 1.67 x 10^-27 kg), determine what would its radius be? (Su
When using TLC plates how you do pick out the best solvent? For example: Match the appropriate solvent out of ethylene chloride, hexane, and acetone for each of the following: 2-phenylethanol, brom
Why are these molar volumes slightly less than the ideal molar volume, 22,4L/mol when the molar volume for HCl and CO2 are 22,262L/mol and 22,262L/mol, respectively?
Calculate the number of valence electrons for the molecules NH3, CH4 and H2O by adding up the valence electrons for the constituent atoms. Calculate the numbers of -bonds and the number of lone elec
By using 2.30 x 10^17 kg/m3 as the density of nuclear matter, determine the radius of a sphere of such matter which would encompass a mass equivalent to that of Earth. Earth consists of a mass equiv
Explain what is meant by the polarity of molecules? Explain what causes differences in polarity? Illustrate the structural formula of isopropyl alcohol. Discuss how it differs in polarity from the wat
A 0.1247 g sample of ascorbic acid, Vitamin C, was burned in a carbon-hydrogen combustion apparatus to form the 0.0510 g of water and 0.1869 g of carbon dioxide.