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A solution has an original concentration of .015 M Cu2+ and .025M IO3-. At equilibrium, the concentration of cu2+ is found to be .012M. What is concentration of IO3- at equilibrium
rust on an automobile door contains fe2o3s. the balanced equation representing one of the reactions between iron in the
If a temperature of a gas at 1.00atm and 8.00C is increased, resulting in a change of pressure, which equation would you use to calculate the new pressure.
10.2 g of ice at -4.8oC is added to 164 mL of water at 50.1oC. What is the final temperature (oC) of the mixture
When 2.11 g of a nonelectrolyte solute is dissolved in 365 mL of water at 25 °C, the resulting solution exerts an osmotic pressure of 845 torr
Photosynthesis by land plants leads to the fixation each year of about 1 kg of carbon on the average for each square meter of an actively growing forest. The atmosphere is approximately 20% O2 and 80% N2, but contains 0.046% CO2 by weight. What vo..
The activity of a sample of Ba-137m has reduced by 75% from its initial activity after 5.10 minutes. Explain what is the half-life of Ba-137m. Define what fraction of activity remains after 6.25 minutes. (A=Aoe (-kt); k = .693/t1/2)
Which of the following are typically TRUE of an oxidizing agent? 1. It causes oxidation. 2. It gains electron(s). 3. It is the reduced substance. 4. all 5. none
a student has sample of hno3 of 340 ml at 25 degrees celsius and add water of 110 ml at 95 degrees celsius then
Define the monobromination of isobutylcyclopropane. Illustrate all six isomers of the product and circle the Br of any which involve a tertiary bromide.
A flask contains 14.182 grams of nitrogen monoxide (NO), 19.628 g of (CO2), and 29.543 g of (SO3). The total pressure in the flask is measured to be 35.9 at,. What is the partial pressure of sulfur trioxide in the flask
constant ratenbsp is 3.20times10-4 ms for a zero-order reaction. concentration has dropped to 9.00times10-2 mnbsp after
You are asked to prepare a buffer with a pH of 9.8. Calculate the volumes of .1 M solutions of NH4Cl and NH3 needed to produce 200mL of the buffer
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