Two gases NH 3 and phosphine gas, PH 3 are effusing through a small pinhole at same temperature. 1.73 ×10-3 mol NH 3 gas takes time of 11.2 second for effusing. Time taken by PH 3 with same amount that is 1.73 ×10-3 mol is to be determined. Concept introduction: Rate of effusion of is a process of escaping of molecules from high pressure to lower pressure at particular rate. Itcan be calculated by dividing moles of gas by time of effusion. Given as- r a t e = ( n t ) Where n = moles of gas t = effusion time Rate of effusion is also inversely proportional to the square root of the molar mass of atom. Ratio of rate of effusion is given as- R a t e o f e f f u s i o n o f g a s A R a t e o f e f f u s i o n o f g a s B = ( M o l a r m a s s o f g a s B M o l a r m a s s o f g a s A ) 1 / 2
Two gases NH 3 and phosphine gas, PH 3 are effusing through a small pinhole at same temperature. 1.73 ×10-3 mol NH 3 gas takes time of 11.2 second for effusing. Time taken by PH 3 with same amount that is 1.73 ×10-3 mol is to be determined. Concept introduction: Rate of effusion of is a process of escaping of molecules from high pressure to lower pressure at particular rate. Itcan be calculated by dividing moles of gas by time of effusion. Given as- r a t e = ( n t ) Where n = moles of gas t = effusion time Rate of effusion is also inversely proportional to the square root of the molar mass of atom. Ratio of rate of effusion is given as- R a t e o f e f f u s i o n o f g a s A R a t e o f e f f u s i o n o f g a s B = ( M o l a r m a s s o f g a s B M o l a r m a s s o f g a s A ) 1 / 2
Solution Summary: The author explains that rate of effusion is a process of escaping molecules from high pressure to lower pressure at particular rate.
Two gases NH3 and phosphine gas, PH3 are effusing through a small pinhole at same temperature. 1.73 ×10-3 mol NH3 gas takes time of 11.2 second for effusing. Time taken by PH3 with same amount that is 1.73 ×10-3 mol is to be determined.
Concept introduction:
Rate of effusion of is a process of escaping of molecules from high pressure to lower pressure at particular rate. Itcan be calculated by dividing moles of gas by time of effusion. Given as-
rate=(nt)
Where n = moles of gas
t = effusion time
Rate of effusion is also inversely proportional to the square root of the molar mass of atom. Ratio of rate of effusion is given as-
These are in the wrong boxes. Why does the one on the left have a lower molar mass than the one on the right?
SYNTHESIS REACTIONS. For the following reactions, synthesize the given products from the given reactants.
Multiple reactions/steps will be needed. For the one of the steps (ie reactions) in each synthesis, write out the
mechanism for that reaction and draw an energy diagram showing the correct number of hills and valleys for
that step's mechanism.
CI
b.
a.
Use acetylene (ethyne)
and any alkyl halide as
your starting materials
Br
C.
d.
"OH
OH
III.
OH
Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely:
(a) 0.200 M HCl
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