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Q.
If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of substance will
Some Basic Concepts of Chemistry
Solution:
Remain unchanged.
This is because when you consider $1 / 6$ in place of $1 / 12$, since mass of carbon atom is sti $=2 amu$ ( where amul is new amu unit and amu is old amu unit)
So now
$N _{ A } 1$
(avogadro's number) becomes half $( N / 2$ ) since the weight of carbon corresponding to a becomes $6 gm$ in place of 12. ( where $N _{ A } 1$ is new avogardo's number and $N _{ A }$ is old avogardro's number)
And we know that mass of one mole of substance is $= N _{ A } \times amu$
So new atomic mass $= N _{ A } 1 \times amu 1= N _{ A } 2 \times 2 amu = N _{ A } \times amu =$
old atomic weight.