Question

If we consider that 1/6 is in place of 1/12 mass of Carbon atom is taken to be the relative atomic mass unit, then the mass of 1 mole of a substance will (a) become half of the normal value (b) increase two folds (c) remains unchanged (d) be a fraction of molecular mass of the substanc

Answer 1

Explanation:

This is because when you consider 1/6 in place of 1/12, since mass of carbon atom is still the same, new amu1 = 2amu ( where amu1 is new amu unit and amu is old amu unit) So now Na1 (avogadro's number) becomes half ( Na/2) since the weight of carbon corresponding to atomic weight becomes 6gm in place of 12.

Answer 2

Answer:Mole Concept -

One mole is the amount of a substance that contains as many particles or entities as there are atoms in exactly 12 g (or 0.012 kg) of the 12C isotope.

- wherein

one mole = 6.0221367 X 1023    

If we consider that 1/6 in place of 1/12 mass of carbon atom is taken to the relative atomic mass unit, the mass of one mole of substance will decrease twice.

Answer. Option (1)

Option 1)

decrease twice

This is the correct option.

Option 2)

increase two-fold

This is an incorrect option.

Option 3)

remain unchanged

This is an incorrect option.

Option 4)

be a function of the molecular mass of the substance.

This is an incorrect option.