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You are asked to identify an unknown liquid that is known to be one of the liquids listed below. You pipet a 3.50-mL sample into a beaker. The empty beaker had a mass of 12.20 g, and the beaker plus the liquid weighed 16.08 g.
Substance Density at 25 °C (g/cm3)
Ethylene glycol 1.1088 (major component of automobile antifreeze)
Water 0.9971
Ethanol 0.7893 (alcohol in alcoholic beverages)
Acetic acid 1.0492 (active component of vinegar)
Glycerol 1.2613 (solvent used in home care products)
(a) Calculate the density and identify the unknown.
(b) If you were able to measure the volume to only two significant figures (that is, 3.5 mL, not 3.50 mL), will the results be sufficiently accurate to identify the unknown? Explain.
Explain when 3-methyl-1, 5-pentanediol is warmed with polyphosphoric acid the major product has a molecular formula C6H12O. Explain what is the structire of this product and how is it formed
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ethylenediamine is a bidentale ligand. if the coordination number of a metal is 6 how many ethylenediiamine molecules
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Problem- You are running out of money to continue your research, but all you need to win the Nobel Prize and get enough money to fund your research for the next 20 years is to synthesize the molecule that cures cancer. You need 2-bromo-3-methylpen..
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 6.0 g of silver plating.
Peonin is a red pigment found in the petals of peony flowers. Why do you think peonin is bonded to two hexoses? What monosaccharide(s) would be produced by acid-catalyzed hydrolysis of peonin?
The molar heat capacity of silver is 25.35 j/mol C. How much energy would it take to raise the temperature of 10.0g of silver by 14.8 C. what is the specific heat of silver
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