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A 0.1 g piece of wood dating back from ancient times emits 0.5 counts per second because of beta decay of carbon 14. The same mass of a modern piece of wood emits 16 counts per second because of beta decay of carbon 14. Explain what is the age of the ancient piece of the wood? The half life of carbon 14 is 5730 years. And presume the amount of carbon 14 in the atmosphere has stayed constant since the ancient piece of wood was formed.
Under what conditions of pressure and temperature do real gases most closely approximate ideal-gas behavior?
what is the importance of surface area particle size nucleation and diffusion rate in terms of solid state
Devise a synthetic strategy to transform 1-Bromobutane to heptane
Given that one mole of NaOH reacts exactly with one mole of potassium hydrogen phthalate, write the chemical reaction and calculate the number of milliliters of 0.100 M NaOH required to neutralize the 0.500 gram sample of potassium hydrogen phthal..
How much heat is produced in burning 8 mol of CH4 under standard conditions if reactants and products are brought to 298 and H2 O(l) is formed. What is the maximum amount of useful work that can be accomplished under standard conditions by this sy..
the hybridization of Carbon in this molecule? b) What would be its molecular shape? and c) What is the bond angle around the C atom?
To prevent tank rupture during deep-space travel, an engineering team is studying the effect of temperature on gases confined to small volumes. What is the pressure of 3.40mol of gas D measured at 251 C in a 1.75-
Explain how many grams of calcium chloride will be Produced when 26 g of calcium carbonate are combined with 12.0 g of hydrochloric acid. Explain which reactant is in excess and define how many grams of this reactant will remain after the reaction i..
170 mL of an HCl solution with pH of 2.60 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
The combustion of ethanol, C2H6O (MW = 46.0 g/mol), produces CO2 (MW = 44.0 g/mol) and water (18.0 g/mol). In a lab experiment, the reaction occurs using 4.60 g of ethanol in a 1.00 L container at body temperature (310 K) and 0.970 atm according t..
What is the equilibrium partial pressure of NH3 in atm?
A titration experiment is set up to use 0.235M bleach (NaOCl) to analyze CrO2-. If 50.0mL of the CrO2-(aq) solution required 37.75mL of bleach to react to completion, what would you calculate as the molarity of the CrO2- solution
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