The partial pressures of each gas in the given sample containing mixture of 50 % helium and 50 % xenon by mass are needed to be determined, it the total pressure of sample is given as 600 torr . Concept introduction: Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone. Partial pressure of a gas in terms of its mole fraction and total pressure is, ` P A = χ A × P TOTAL Mole fraction of a molecule in a mixture is the ratio of number of moles of particular molecule to the sum of number of moles of all molecules in the mixture. Equation for mole fraction of a molecule in a mixture of two molecules (A and B) is, molecule fraction of A, ( χ A ) = numbers of moles of A (n A ) numbers of moles of A (n A ) + numbers of moles of B (n B ) Number of moles of a substance from its given mass is, Number of moles = Given mass Molecular mass Total pressure of a mixture of gases is the sum of individual partial pressures of constituted gases. To determine: the partial pressure of each gas in the given mixture of 50 % helium and 50 % xenon by mass.
The partial pressures of each gas in the given sample containing mixture of 50 % helium and 50 % xenon by mass are needed to be determined, it the total pressure of sample is given as 600 torr . Concept introduction: Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone. Partial pressure of a gas in terms of its mole fraction and total pressure is, ` P A = χ A × P TOTAL Mole fraction of a molecule in a mixture is the ratio of number of moles of particular molecule to the sum of number of moles of all molecules in the mixture. Equation for mole fraction of a molecule in a mixture of two molecules (A and B) is, molecule fraction of A, ( χ A ) = numbers of moles of A (n A ) numbers of moles of A (n A ) + numbers of moles of B (n B ) Number of moles of a substance from its given mass is, Number of moles = Given mass Molecular mass Total pressure of a mixture of gases is the sum of individual partial pressures of constituted gases. To determine: the partial pressure of each gas in the given mixture of 50 % helium and 50 % xenon by mass.
Solution Summary: The author explains the partial pressures of each gas in a given sample containing mixture of helium and xenon by mass are needed to be determined, and the total pressure of sample is given as
Interpretation: The partial pressures of each gas in the given sample containing mixture of
50% helium and
50% xenon by mass are needed to be determined, it the total pressure of sample is given as
600torr.
Concept introduction:
Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone.
Partial pressure of a gas in terms of its mole fraction and total pressure is,
`
PA=χA×PTOTAL
Mole fraction of a molecule in a mixture is the ratio of number of moles of particular molecule to the sum of number of moles of all molecules in the mixture.
Equation for mole fraction of a molecule in a mixture of two molecules (A and B) is,
(f) SO:
Best Lewis Structure
3
e group geometry:_
shape/molecular geometry:,
(g) CF2CF2
Best Lewis Structure
polarity:
e group arrangement:_
shape/molecular geometry:
(h) (NH4)2SO4
Best Lewis Structure
polarity:
e group arrangement:
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
Sketch (with angles):
1.
Problem Set 3b
Chem 141
For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing
bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the
molecule is polar or non-polar (iv)
(a) SeF4
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
(b) AsOBr3
Best Lewis Structure
e group arrangement:_
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
(c) SOCI
Best Lewis Structure
2
e group arrangement:
shape/molecular geometry:_
(d) PCls
Best Lewis Structure
polarity:
e group geometry:_
shape/molecular geometry:_
(e) Ba(BrO2):
Best Lewis Structure
polarity:
e group arrangement:
shape/molecular geometry:
polarity:
Sketch (with angles):
Sketch (with angles):
Sketch (with angles):
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