The gas that a diver breathes must be maintained at a partial pressure of 0.20 atm of oxygen. More oxygen could poison the diver, and less would lead to suffocation. The total pressure, however, must be equal to the external pressure to avoid collapsing the lungs. A special valve is used to equalize the pressure inside the diver's lungs with the external pressure by adding helium gas. The valve also maintains oxygen levels by using Dalton's Law. If the total pressure in the cylinder is 1.00 atm, what is the pressure of the helium?
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Chemistry, 21.06.2019 15:50
If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g
Answers: 1
Chemistry, 21.06.2019 22:30
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
Answers: 2
Chemistry, 22.06.2019 02:30
In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent
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Chemistry, 22.06.2019 03:00
What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?
Answers: 3
The gas that a diver breathes must be maintained at a partial pressure of 0.20 atm of oxygen. More o...