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Compute the number of ion pairs that would be formed in the interaction of one 5.0 MeV alpha particle with air. Presume that the formation of one ion pair requires 35 eV? Explain what other assumption did you make in your calculation?
A sample of potassium nitrate is collected in a 1500 mL flask. The pressure of the gas in the flask is 2.2 atm and the temperature is recorded to be 346.7K. How many molecules of O2 gas were produced
A water sample was taken from a lake. A 100.00mL portion of this sample was pipetted into a 250mL Erlenmeyer flask. EriochromeBlack T-indicator, sodium cyanide, and ammonia buffer
An unknown gas effuses through a porous barrier at a rate that is 0.752 times the rate of Ar (g) under the same conditions. Which of the following is the unknown gas. Cl2 (g) He (g) O2 (g) N2 (g) H2 (g)
calculate the wavelength of the photon emitted when an electron drops from 4d obital to a 2p orbital in a hydrogen atom using Rydberg constant as 1.097 x 10-2 pm-1 .
Describe and explain the possible effect on your results of the following experimental errors or variations. You reaction mixture had an oily later on top when you added the 3 M sulfuric acid.
Discuss how nitrogen, once fixed, enters into anabolic biochemical reaction pathways. Your discussion should include how it is eventually
What is the molar composition of the vapor in equilibrium with a boiling liquid that has a composition of 60% A and 40% B
A bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a TRIS buffer, (HOCH2)3CNH2. The buffer is made by dissolving 44.0 g TRIS (pKb = 5.91) in enough 0.065 M HCl to make 1.00 L of solution.
if 150g of water is collected during complete combustion of 166g of butane with ocyben, calculate the percent yield of water.
What are the main effects of petroleum toxicity, what is gasoline, what are the components of gasoline, define word dispersant & list the chemical composition of the chemical dispersant "corexit"
Disregarding any other losses and treating the animal as a closed system, what was the change in internal energy of the animal?
What quantity of heat is required to vaporize 0.500 mL of Hg at 357 degrees celsius its normal boiling point. The density of Hg is 13.6 g/mL
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