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Life O2 markets bottled water that claims to contain 1500% more oxygen than regular bottled water. The bottle state that it contains 80ppm oxygen in the water. Explain at what pressure water could be bottled at to produce the same concentration of oxygen as the life 02 water. The henry's constant for oxygen is k= 1.0 x 10-3 Matm-1
When a 110 gram peice of metal at 80 degrees celcius is placed in 220 grams of water at 0 degrss celcicius the metal is cooled and the water is warmed and both come to a final temprature of 20 degrees celcius. What is the specific heat of the meta..
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air. (a) If the partial pressures of CO2 and H2O in exhaled air ar..
Silicon is widely used in the semi-conductor industry. Its isotopes and their anatomic masses are:Si-28 (27.9769amu), Si-29 (28.9765amu), and Si-30 (29.9794amu) Which is the most abundant
During the late 1800's, hard rock miners replaced candles with carbide lamps for work in mine shafts. The lamps worked by dripping water onto calcium carbide that generated acetylene gas (H2C2) that was burned.
A buffer solution was prepared by adding 4.95 g of sodium acetate (NaCH3CO2) to 0.250 L of 0.150 M acetic acid (Ka = 1.75 x 10-5). a. What is the pH of the buffer
Europium (atomic weight 151.96) has two naturally occurring isotopes with isotopic weights 150.9196 and 152.9209. what is the percentage abundance of the lighter isotope
What are the three basic steps in Mass Spectrometry. Also why are the analyte molecules ionized
A lead fishing weight with a mass of 68 g absorbs 146 cal of heat. If its initial temperature is 56°C, what is its final temperature.
A 5.000g sample of pesticide was decomposed with metallic sodium in alcohol, and the liberated chloride ion was precipitated as AgCl. Express the results of this analysis in terms of percent of DDT (C14H9Cl5) based on the recovery of 0.1606g of Ag..
Explain how you would prepare 100.0mL of a solution, using pure solute and water, that is 5 v/v% C2H6O(ethanol).
he following compound has two stereoisomers. One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 0 D
The isotope, carbon-14, is a very interesting isotope to study because of how ubiquitous carbon is in living organisms. However, isolating 14C from 14N can be very challenging.
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