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The nuclide 241Am decays with a half life of 458 yrs. If the activity of 241Am in the detector is 3*10^4 Bq, calculate the mass of 241Am present.
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
What volume in mL of concentrated nitric acid (72.0% HNO3 (w/w), sp. gr. 1.42) is required to prepare exactly 3.85 L of 0.330 M HNO3
Neopentyl alcohol, (CH3)3CCH20H,cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration? What product would you expect from addition of deuterium chloride to 2-cyclohexyl-4methyl-2-pentene?
Compare the temperature of your water bath at the time of reflux with the boiling point of your solvent
What is the half-life of a compound if 78 percent of a given sample of the compound decomposes in 45 min? Assume first-order kinetics.
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
Write a balance equations for both half-reactions for the redox. combine them to determine the overall balanced
Calculate the volume of water added to 0.410 L of 0.0340 M sodium hydroxide to obtain a 0.0110 M solution (assume the volumes are additive at these low concentrations).
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.034 M NaOH. (c) sodium hydrogen chromate (NaHCrO4)?
A sample of neon has a volume of 575 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1262 mmHg?
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of copper in a 1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for t..
Examine the structures of the following compounds. What functional groups can you identify within the compounds? (They may have more than one.) What structural features do many of these compounds have in common?
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