Question

5)
The amu has been replaced by unified mass unit called.
a) Newton
b) Avogadros
c)Dalton
d) Gay Lussac​

Answer 1

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Dalton

Dalton is occasionally called as unified atomic mass unit.

Answer 2

Answer: Correct option is C which is Dalton

Explanation:

The single atomic mass unit or dalton (Da) is a standard unit used to indicate mass on an atomic or molecular scale (atomic mass). One single atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron). It is defined as one-twelfth the mass of an unbound neutral carbon-12 atom in its ground electronic state.

The dalton (symbol: Da), also known as the atomic mass unit, is a unit of mass equal to one-twelfth the mass of a free atom of carbon-12 at rest. Its value is approximately equal to 1.660 x 10−27 kg. The molar mass of an entity, measured in daltons, is approximately equal to the sum of the protons and neutrons in the entity. For example, the 45 atoms in the sucrose molecule C12H22O11 have 182 protons and 160 neutrons between them, giving a total of 342 particles. The molar mass of sugar is 342.299 daltons.

The molar mass of large molecules can be expressed in kilodaltons or megadaltons as appropriate.

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