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Problem- A fossil was analyzed and determined to have a carbon-14 level that is 50% that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil?
Please explain above problem in step by step manner so I can easily understand it
Descibe at least four possible factors which may influence the amount of light absorbed by a solution and how these factors may affect the absorption
Calculate the enthalpy of the reaction: 2NO(g) + O2(g) --> 2NO2(g) given the following reactions and enthalpies of formation:
A fuel gas containing 86 % methane, 8 % ethane, and 6 % propane by volume flows to a furnace at a rate of 1450 m3 /h at 15 degrees C and 150 kPa (gauge), where it is burned with 8 % excess air. Calculate the required flow rate of air in SCMH (stan..
Consider the heterogeneous equilibrium process shown below. C(s) + CO2(g) 2 CO(g) At 700.°C, the total pressure of the system is found to be 3.20 atm. If the equilibrium constant KP is 1.52,
Sunlight causes the following reaction to take place in the atmosphere: NO2(g) NO(g) + O(g). Calculate the standard enthalpy of the reaction from the following information and from additional information in Appendix 2A
hydrogen has two naturally occurring isotopes normal hydrogen h with atomic mass of 1 and deuterium d with atomic mass
Consider a situation in which 161g of P4 are exposed to 176g of O2. A)What is the maximum amount of P2O5 that can theoretically be made from 161g of P4 and excess oxygen
write an equation for the acid-base reaction between nitrous acid and hydroxide ion. why does the equilibrium favor the products
consider a solid sphere of radius 19 cm at a temperature of 42 degrees celsius. suppose the sphere is completely
0431 moles of sucrose (a sugar with a MW of 342 g/mol) are dissolved in 400.0 g of water. The solution density is 1.013 g/mL and you can assume that the density of pure water is 1.00 g/mL. What is the molality of this solution
How many grams of oxygen are required to completely burn 5.90 g of C3H8 in the following unbalanced equation: C3H8(g) + O2(g) --> CO2(g) + H2O(g)
The gibbs free energy of water dissociation at 2100K is larger than that of carbon dioxide dissociation by at least 35 kJ/mol.
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