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What properties of crabon dioxide determine its migration in our enviroment?
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
An igneous rock contains a Pb-206/U-238 mass ratio of 0.372. How old is the rock. (U?238 decays into Pb?206 with a half-life of 4.50×109 yr.)
When 1.0 m aqueous solutions of sodium carbonate as well as hydrochloric acid react it produces a carbon dioxide, water and sodium chloride. State the balanced chemical equation for the reaction described above (include states of matter)
What is the maximum number of electrons that can be in a second electron shell (principal energy level)?
Calculate the pH of the stock sodium acetate where the concentration of both sodium acetate and acetic acid is 1M and the pKa of acetic acid is 4.75.
Using data from thermodynamic quantities at 298.15K, calculate deltaG^degree for the following reactions. Indicate if each reaction is spontaneous at 298K under standard conditions.
You put your arm around the persons waist and use your fist to push up on the persons abdomen, an action called the Heimlich maneuver. a) How would this action change the volume of the chest and lungs? b) Why does it cause the person to expel the ..
lead is found in earths crust as several different lead ores. suppose a certain rock is composed of 38.0 pbsgalena 25.0
If a typical antacid tablet contains 2.0 g of sodium hydrogen carbonate, how many moles of carbon dioxide should one tablet yield? 0.024 moles per tablet
A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2 ? 10-8]
predict a shape of small organic molecules that could bind tightly with G4. Be sure to explain your reasoning in terms of the measured distances and discuss the likely intermolecular forces involved in the interaction.
Benzene as well as toluene form nearly ideal solutions. At T = 300 K the vapor pressures of the pure liquids are 103 and 32torr. a) A liquid mixture is composed of three mol toluene and two mol benzene. If the pressure over the mixture at 300k is s..
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