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A small sample of wood from an archeological site in Clovis,New Mexico, was burned in O2, and the CO2produced was bubbled through a solution of Ba(OH)2 toproduce a precipitate of BaCO3. When theBaCO3 was collected by filtration, a 1.000g samplewas found to have a radioactivity of 4.0 x 10-3Bq. The half-life of 14C is 5730 years, and livingorganisms have a radioactivity due to 14C of 15.3disintegrations/min per gram of carbon. Assuming that the analysis was carried out in 1960, what is the age BP of the Clovissite?
a metal object with a mass of 19g is heated to 96 degrees c then transferred to a calorimeter containing 75 g of water
What volume of oxygen gas is required to react completely with 0.132 mol of glucose (C6H12O6) according to the following reaction at 0 C and 1 atm
The skeletal structure of one molecule is included to indicate the proper format; modify the X\'s on the given structure to create the first stereoisomer.
Joe Schmoe mixed peroxide with yeast to generate oxygen gas and collected the gas in a graduated cylinder, using the same set up as was used in Experiment 11. He collected the following data
what is the volume change when 2 kg of water at 6.8 MPa and 93 Celsius expands to 1.6 bar
The lengths of chemical bonds in H2 and in other compounds formed from hydrogen isotops is about .74 x 10^-10 m. Estimate the bond length in molecules where the muon replaces the electron.
What might one do to verify that the global strain-energy minimum has been identified
Identify the sets of quantum numbers that describe all the electrons in a neutral beryllium atom, \rm Be. Each set is ordered
In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same conditions. What will the pressure measure (in kPa) in the second trial?
Caproic acid C5H11COOH is found in small amounts in coconut and palm oils and is used in making artificial flavors. A saturated solution of the acid contains 11 g/L and has a pH of 2.94. Calculate Ka for the acid.
Stricly speaking why is it incorrect to speak of a melting point. What effect would incomplete drying of a sample have on a melting point
A student following the procedure in this experiment prepared three solutions by adding 11.50, 23.00, and 34.50 mL of a 7.60 x 10-2M NaOH solution to 50.00 mL of a .112M solution of a weak acide. The solutions were labeled 1, 2, and 3 respectively
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