May 10, 2009
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I know its an MCAT book, but im using it to study for the DAT.

15). If A ( the mass number) of an element "E" has a value of 22, then one mole of element E:

A. has a mass of approximately 11 amu
B has a mass of approximately 22 amu
C. weighs approximately 22 grams
D. weighs approximately 22 x 6.02 x 1023 grams.


The answer they give is C, which is right. But can't it be B also?
 

dl9006

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Jul 2, 2008
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I know its an MCAT book, but im using it to study for the DAT.

15). If A ( the mass number) of an element "E" has a value of 22, then one mole of element E:

A. has a mass of approximately 11 amu
B has a mass of approximately 22 amu
C. weighs approximately 22 grams
D. weighs approximately 22 x 6.02 x 1023 grams.


The answer they give is C, which is right. But can't it be B also?
i think 22 amu is the mass of one atom, not a mol.
 

Danny289

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Dec 2, 2006
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I know its an MCAT book, but im using it to study for the DAT.

15). If A ( the mass number) of an element "E" has a value of 22, then one mole of element E:

A. has a mass of approximately 11 amu
B has a mass of approximately 22 amu
C. weighs approximately 22 grams
D. weighs approximately 22 x 6.02 x 1023 grams.


The answer they give is C, which is right. But can't it be B also?
amu use for one atom, when you have Mole that means 6.02 X10^23 of atoms.