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A wooden object from the site of an ancient temple has a carbon-14 activity of 13.0 counts per minute compared with a reference piece of wood cut today that has an activity of 104 counts per minute if the half life for carbon is 5730 years what is the age of the ancient wood?
write an equations for the reactions that takes place when the compound in ch3ococh2ch3 is refluxed in the presence of
Calculate the amount of heat liberated (in kJ) from 421 g of mercury when it cools from 91.0°C to 11.0°C.
CO2 has a mol wt of 44 Da. 5.0 micro liters of CO2 is added to 525 mL of air. The pm of CO2 by volume and weight is/are?
calculate the temperature of an isothermal flash drum required to vaporize 40% of a liquid mixture of 60mol% isopropanol and 40mol% n-butanol
Calculate the specific heat of molybdenum metal in {rm J/(g cdot ^circ C)}. The specific heat of water is 4.184{rm J/(g cdot ^circ C)}.
3agno3 na3po4 --gt ag3po4 3nano3silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. how
The Ksp of AgCl at 25 oC is 1.6 x 10-10. Consider a solution that is 1.0 x 10-4 M CaCl2 and 1.0 x 10-6 M AgNO3. 1. Q
Which step is the rate determining step on a reaction?
An aqueous solution containing 5.85g of an optically pure compound was diluted to 800.0mL with water and placed in a polarimeter tube 10.0cm long. The measured rotation was -5.93degrees at 25degrees C. Calculate the specific rotation of the compou..
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 150.00 pm.
what are the chemical properties of corundumaluminium
Does the body have an impact on the brain? If so, how much? What do you have to back up your position?
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