The total pressure is 6.7 atm. The mole fractions of O₂ and Ar are 0.42 and 0.037.
<em>p</em>(Tot) = <em>p</em>(N₂) + <em>p</em>(O₂) + <em>p</em>(Ar) + <em>p</em>(He) = 3.5 atm + 2.8 atm + 0.25 atm + 0.15 atm = 6.7 atm
χ(O₂) = p(O₂)/p(Tot) = 2.8 atm/6.7 atm = 0.42
χ(Ar) = p(Ar)/p(Tot) = 0.25 atm/6.7 atm = 0.037
Well here are the Main Chemicals, Compounds and Components
- the two main components are carbonated water and caramel color
- molecular formula for carbonated water is H2CO3
- Molecular formula for caramel color is C18H9N Na2O8S2
- Carbonated water is water that contains carbon dioxide gas, the gas causes there to be small bubbles in the water
- Caramel color is the most consumed food coloring ingredient in the world, it results from controlled heat treatments of carbohydrates
Answer:
a. True
Explanation:
Hello there!
In this case, as Grignard reagents are widely used in organic-synthesis procedures, since they are compelling nucleophiles able to react with electrophiles such as carbonyl compounds (aldehydes, ketones, esters, carbon dioxide, etc) and epoxides; they are involved in the addition of new C-C bonds to an starting carbon chain; therefore, this statement is a. True.
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Answer:
Mole fraction of B is 0.76
Explanation:
The pressure of a mixture of gases using vapor pressure and mole fraction of each gas is:
P = P°aₓXa + P°bₓXb + ... + P°nₓXn
<em>Where P is pressure of the system, P° is vapor pressure of pure gas and X is its mole fraction.</em>
In the problem, the pressure of the mixture of two gases is 740torr, mol fraction of A is 0.24 and vapor pressure of B is 800torr, that is:
740torr = P°aₓ0.24 + 800torrₓXb
Also, the sum of mole fractions for each of the compounds in the mixture is 1, that is:
1 = Xa + Xb
As Xa = 0.24
1 = 0.24 + Xb
1-0.24 = Xb
0.76 = Xb
<em>Mole fraction of B is 0.76</em>