For a given two 200.0L tanks with the gases helium and hydrogen, the mass of each gas is needed to be determined to produce a pressure of 2.70 atm in its respective tank at 24°C . Concept introduction: By combining the three gaseous laws namely Boyle’s law, Charles’s law and Avogadro’s law a combined gaseous equation is obtained. This combined gaseous equation is called Ideal gas law . According to ideal gas law, PV=nRT Where, P = pressure in atmospheres V= volumes in liters n = number of moles R =universal gas constant ( 0.08206 L ⋅ a t m / K ⋅ m o l ) T = temperature in kelvins By knowing any three of these properties, the state of a gas can be simply identified with applying the ideal gas equation. The mass of a given substance can be calculated by, M a s s i n g r a m = n u m b e r o f m o l e s × g r a m m o l e c u l a r m a s s
For a given two 200.0L tanks with the gases helium and hydrogen, the mass of each gas is needed to be determined to produce a pressure of 2.70 atm in its respective tank at 24°C . Concept introduction: By combining the three gaseous laws namely Boyle’s law, Charles’s law and Avogadro’s law a combined gaseous equation is obtained. This combined gaseous equation is called Ideal gas law . According to ideal gas law, PV=nRT Where, P = pressure in atmospheres V= volumes in liters n = number of moles R =universal gas constant ( 0.08206 L ⋅ a t m / K ⋅ m o l ) T = temperature in kelvins By knowing any three of these properties, the state of a gas can be simply identified with applying the ideal gas equation. The mass of a given substance can be calculated by, M a s s i n g r a m = n u m b e r o f m o l e s × g r a m m o l e c u l a r m a s s
Solution Summary: The author explains how the mass of a given substance can be calculated from the ideal gas equation.
Definition Definition Number of atoms/molecules present in one mole of any substance. Avogadro's number is a constant. Its value is 6.02214076 × 10 23 per mole.
Chapter 8, Problem 49E
Interpretation Introduction
Interpretation: For a given two 200.0L tanks with the gases helium and hydrogen, the mass of each gas is needed to be determined to produce a pressure of 2.70 atm in its respective tank at
24°C.
Concept introduction:
By combining the three gaseous laws namely Boyle’s law, Charles’s law and Avogadro’s law a combined gaseous equation is obtained. This combined gaseous equation is called Ideal gas law.
According to ideal gas law,
PV=nRT
Where,
P = pressure in atmospheres
V= volumes in liters
n = number of moles
R =universal gas constant (
0.08206L⋅atm/K⋅mol)
T = temperature in kelvins
By knowing any three of these properties, the state of a gas can be simply identified with applying the ideal gas equation.
The mass of a given substance can be calculated by,
Devise a synthesis of each compound from the indicated starting material. You may also use any organic
compounds with one or two carbons and any needed inorganic reagents.
a.
Br
Please help me with #2b & #3 using the data.
Heparin is used as an anti-coagulant. A risk of heparin use is thrombocytopenia, or low platelet
count. This risk is minimized with the use of low molecular weight heparins (LMWH), therefore it is
desirable to separate LMWH from higher molecular weight heparins. The method of choice to do
this is molecular exclusion chromatography. Below is a chromatogram from a molecular exclusion
chromatographic run. Peaks ranging from A to J are clearly distinguishable. The heparin mixture
that was analyzed had anywhere from 6 to 30 repeat units of monomer (where the heparin with 30
repeat units would be roughly five times the size of the heparin with six repeat units).
a. Which letter most likely represents the peak with 6 repeat units given these heparin polymers
were separated with molecular exclusion chromatography?
b. Explain your reasoning describing the mechanism of retention in molecular exclusion
chromatography.
100
80
60
60
Relative Abundance
40
40
E
GH
20
20
B
A
36 38 40 42 44 46 48 50
50…
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