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A sample of collagen exhibits 15.2 disintegrations per minute per gram (15.2d/min/g) of carbon. The C^14 decay rate for the sample of glue was found to be 5.60d/min/g. What is the approximate age of the glue. Disintegration of C^14 is a first order process with a rate constant 1.209*10^-4 year^-1.
The resulting solution has an osmotic pressure of 0.544 atm at 25°C. Assuming that the organic compound is a nonelectrolyte, what is its molar mass?
Draw Fischer projection formulas of the major product of the reaction between E-2-methyl-3-hexene and aqueous Br2.
shown to contain 12.518 g silver, 0.6970 g carbon, and 2.786 g oxygen. What is the empirical formula of the sample?
determine the energy change that occurs during the combustion of 1 mole of ethene (ethene's connectivity is: H2C=CH2 also written as CH2=CH2).
We are asked to write the balanced equation when glucose is reacted with ammonium chloride + epichlorohydrin + isopropyl alcohol. What is the ultimate end product? Hopefully it is supposed to be some form of a quaternary ammonium radical attached to ..
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
write the chem equation for the reaction which occurs when nickel metal is added to nitric acid.
closed container and the mixture is ignited the reaction products are CO2 and H2O. If 61.6 g of CO2 are actually produced in the reaction , what is the percent yeild of CO2?
2-Methylpentane and 4-methyl-2-pentanone are constitutional isomers with the molecular formula C6H12O.each shows a molecular ion peak in its mass spectrum at m/z 100.
If one atom of carbon-14 weighs 14.0035 atomic mass units and one atomic mass unit is equal to 1.660539*10^-24 grams, what is the mass of 25 atoms of carbon-14 in grams?
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (C3H8) to burn it completely.
If ΔH = -60.0kJ and ΔS = -0.200kJ/K , the reaction is spontaneous below a certain temperature. Calculate that temperature. Express your answer numerically in kelvins.
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