Chemistry

Indicate if the following pairs of compounds could be separated via liquid-liquid extraction.First, draw the structures of the compounds, next determine whether they are acids or bases or neutral. Finally, look up their pKa (or pKb) values and indicate which aqueous solution would separate them or if they are inseparable. Assume that you can utilize aqueous HCl, NaOH, or NaHCO3 for your extractions. For each case that will not work, give the reason.You don't have to draw structure, just explain if they are able to be separated or not and with what and why.1. picric acid and phenol2. salicyclic acid and phenol3. triethylamine and diethylamine4. 3-nitrobenzoic acid and 2-nitrobenzoic acid5. benzylamine and aniline
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A student used a balance and a graduated cylinder to collect the data 10.23,20.0, and 21.5 calclulate the density of the elements
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How does matter, such as carbon, move through an environment?
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How many mL of a 0.25M Pb(NO3), solution are needed to react with 0.40L of a 0.10M NaCI solution in the following reaction?2 NaCI + Pb(NO3)2 - 2 NaN03 + PbCI2
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carbon dioxide (co2) contains c-o bonds. which if the following statements are true about the bonding electrons in this molecule?a.The bonding electrons will be shared equality between C and O atomsb.The bonding electrons will spend more time around the O atom as it attracts the electrons more stronglyc.The bonding electrons will spend more time around the C atom as it attreacts the electrons more stronglyd.The bonding electrons will spend more time around the C atom as it needs an octet of electrons more than the O atom
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for a solution treated aluminum alloy, the aging needed to achieve a yield strength of 400 mpa would be:
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molecular shape is determined by the number of electron domains around a central atom, where an electron domain may be a(n)
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**If you have 5.0 moles of calcium, how many moles of calcium carbonate will be produced?
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which of the following are semiconductor elements? a. iron and copper b. boron and gallium c. silicon and germanium d. arsenic and phosphorou
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a piece of metal with a mass of 31.5g is added to a graduated cylinder to calculate the volume. the water is initially at the 51 mark, and it rises to the 78 mark after the metal is added. what is the density of the metal?
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acetaldehyde is a carcinogenic chemical that the body produces when it breaks down alcohol. is this molecule polar or nonpolar?
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a bleaching solution contains sodium hypochlorite, naclo, dissolved in water. the solution is 0.650 m naclo. what is the mole fraction of sodium hypochlorite?
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considering that reactions can occur in both directions and the importance of chemical equilibrium, under which conditions would nadh production occur?
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which solute will have a more negative enthalpy of solution, assuming the same solvent is used and the solvent-solute interactions are the same in both cases: csi or lif?
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what term refers to very hard substances, such as diamond, silicon carbide, and quartz, that contain covalent bonds but do not consist of discrete molecules?
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fully reacting an aldehyde with an alcohol will produce? a. an acetal b. a primary alcohol c. no reaction d. a carboxylic acid'
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determine the number of atoms in 15.0 grams of calcium, ca. (the mass of one mole of calcium is 40.08 g.)
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Which detail from the passage could be used to support the idea that people need to conserve mineral resources? A. Mineral resources have done a lot B. the resources are steadily and forever diminishing C. It is only by having cheap and abundant coal, iron, and copper D. But until new inventions have actually been made
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how are formation and dissociation constants related? group of answer choices inverses of each other the product of them equals kw they are the same thing they are not related at all
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in the picture on page 2 (it reads page 6 on the bottom of the page) of the bath bombs article, what is the interaction between the water and sodium ions and the water and the bicarbonate ions called?
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what is the vapor pressure in torr above a solution that contains 4.54 mols of methanol combined with 1.95 mols of ethanol?
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what is the ph of the solution with hydronium ion concentration of 6.3 x 10-12 m? group of answer choices 12.60 10.20 11.20 11.80 10.80
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what is the electron configuration of a ground-state cu atom? multiple choice 1s22s22p63s23p64s13d10
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discribe the difference bettween a food chain and a food web
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