Daltons Law and Mole Fraction
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Hey for mole fraction, how or why is the total number of moles of gas directly proportional to the pressure of gas?
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Excellent video! Clear and detailed.
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@chemistryprofessorpc it did help alot but i still dont know how to use it... is it okay if i send you a message because i don't want to spam your comments.
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Great job. Thanks so much!
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This video is very informative, thank you for posting this chemistry video.
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It is the number of particles colliding with the sides of the container that contribute to the pressure. The greater the number of particles, the greater the pressure. The mole fraction of a particular gas may be thought of as the fraction of the total gas particles that is due to that particular gas. The larger the fraction (mole fraction), the greater the number of those particular gas molecules, hence the greater the pressure from that mole fraction.
Hope that helps.
chemistryprofessorpc 6 months ago
Pa=Xa*PT
^ can u explain to me what that is?? i know its related to this but i really dont get it. what do the variables mean??
xastrickxplusx 1 year ago
@xastrickxplusx
Pa is the symbol for partial pressure of gas "a." Xa is the mole fraction of gas "a." PT is the total pressure of the mixture of gases. So this is what I was talking about in this video. To find the pressure a particular gas is responsible for in a mixture of several gases, take the mole fraction of that particular gas and multiply it by the total pressure of all the gases together.
Hope this helps!
chemistryprofessorpc 1 year ago
im confused T^T, the formula given by my teacher was different from this one... it sez.. X solute = mole solute/ mole solvent + mole solvent........ and......... X solvent = mole solvent / mole solute + mole solvent....
Jesant045 2 years ago
And you teacher is correct! In the situation you presented, it is likely that you were referring to a solution, such as salt in water or something dissolved in another solvent. If you wish, think of the mixture of gases that I used as a solution and one of the gases is the solute and the other gases are the solvent. Or think of it as two gases being the solutes and one of the gases being a solvent. In any case, it is the same thing. Hope this helps! Good luck.
chemistryprofessorpc 2 years ago