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A wooden artifact from a Chinese temple has a activity of 43.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14C decay, 5715 yr, determine the age of the artifact.
Determine the intermolecular distances for the two molecules and account for their similarity or difference.
A 29.20 g piece of iron and a 25.30 g piece of gold at 100.0 degree C were dropped into 980.0 mL of water at 15.65 degree C. The molar heat capcities of iron and gold are 25.19 J/(mol degree C) and 25.41 J/(mol degree C), respectively.
what is the bp of its enantiomer?What optical rotation would be observed if 7.2 g of (S)-amine were mixed with 7.2 g of the (R)-amine?
5.00 ml of a water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. Write an equation for the reaction and calculate the hardness of the water in ppm
Explain the difference between accuracy and precision, as it pertains to experimental data. The best way to do so is to define
how does the structure of an atom determine the atoms emission and absorption spectra.
What is the molarity of a solution that is 7.00% by mass magnesium sulfate and has a density of 1.071.
when 500 L of a 2.0 M solution of Pb(NO3)2 is mixed with an excess of 1.00 M solution of KI, how many grams of lead(II) iodine are formed?
what is the longest wavelength of radiation that possesses the necessary energy to break a nitrogen bond.
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
If the density of the solution is 1.1094 g/mL, what is the molarity of the sulfuric acid?
a balloon is filled with helium. its volume is 5.9 at 26degrees celcius. what will be its volume at 278 degrees celcius?
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