ChatterBank0 min ago
avogadros number
Avagadros number is defined as the number of particles present in a 12g sample of Carbon-12 .I know that 12 is the molecular mass for carbon so likewise, can i define Avagadros number as the number of particles present in a 32 gram sample of Oxygen?
thanx
thanx
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Atomic number of Oxygen is 8.
99.762% of naturally occuring oxygen is isotope16
Atomic mass of Oxygen16 is 16.
There are also natural isotopes 17 and 18.
Molecular mass of the most common form (diatomic) Oxygen16 is 32.
Cheeris is incorrect.
However the slight difference in bonding energy (and hence mass) between Carbon and Oxygen would result in a very very small error if used for Avogadros number. This is why it is specifically defined by Carbon rather than just any element.
99.762% of naturally occuring oxygen is isotope16
Atomic mass of Oxygen16 is 16.
There are also natural isotopes 17 and 18.
Molecular mass of the most common form (diatomic) Oxygen16 is 32.
Cheeris is incorrect.
However the slight difference in bonding energy (and hence mass) between Carbon and Oxygen would result in a very very small error if used for Avogadros number. This is why it is specifically defined by Carbon rather than just any element.
Although in my defence, like the Question author (I believe?) I was actually referring to atomic mass, hence my use of the inverted commas to point out the use of an incorrect term.
Of course, I really should have pointed this out rather than just being sarky and snide, so apologies to all concerned - especially blackeyed.
Of course, I really should have pointed this out rather than just being sarky and snide, so apologies to all concerned - especially blackeyed.
yeah I was reading this, and thinking Christ they are all making a real meal of all this.
Black eye: no answers allowed on your stem cell question.
A. yes, but the stem cells will be specific for the embryo species.
So a pig embryo will yield little piggy stem cells
Good question, raising questions like what happens if you mix stem cells and culture them.
or, get a bunny stem cell and get the nucleus and put it in a piggy stem cell
1959 Lejeune was the first to get a frog liver cell nucleus and put it in a fertilised frog spawn whose nucleus had been irradiated, and got a........?
the answer shocked everyone
and as they say, changed history
Black eye: no answers allowed on your stem cell question.
A. yes, but the stem cells will be specific for the embryo species.
So a pig embryo will yield little piggy stem cells
Good question, raising questions like what happens if you mix stem cells and culture them.
or, get a bunny stem cell and get the nucleus and put it in a piggy stem cell
1959 Lejeune was the first to get a frog liver cell nucleus and put it in a fertilised frog spawn whose nucleus had been irradiated, and got a........?
the answer shocked everyone
and as they say, changed history
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