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Atomic Limitations and Atomic Mass Quiz

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Questions and Answers

What is the definition of atomic mass?

The mass of an atom relative to the mass of one atom of helium-4

The mass of an atom relative to the mass of one atom of oxygen-16

The mass of an atom relative to the mass of one atom of carbon-12 (correct)

The mass of an atom relative to the mass of one atom of hydrogen-1

What is the formula used to calculate the average atomic mass of an element?

RA(1) + RA(2) / RA(1) × at. mass (1) + RA(2) × at. mass (2)

RA(1) × at. mass (1) + RA(2) × at. mass (2) / RA(1) + RA(2) (correct)

at. mass (1) + at. mass (2) / RA(1) + RA(2)

RA(1) × RA(2) / at. mass (1) + at. mass (2)

What is the difference between molecular mass and formula mass?

Molecular mass is the mass of a formula unit, while formula mass is the mass of a molecule.

Molecular mass and formula mass are the same thing.

Molecular mass is the mass of a mixture, while formula mass is the mass of a compound.

Molecular mass is the mass of a molecule, while formula mass is the mass of a formula unit. (correct)

What is the equivalent mass of an element or compound?

The mass of an element or compound that would combine with or displace (by weight) 1 part of hydrogen or 8 parts of oxygen or 35.5 parts of chlorine. Signup and view all the answers

What is the n factor for an acid?

The number of ionisable H+ per molecule. Signup and view all the answers

What is the formula used to calculate the equivalent mass of an organic acid?

Eq. wt. of silver salt of acid (COOAg) / Eq. wt. of Ag (or 108) Signup and view all the answers

What is Dulong and Petit's rule?

Atomic weight × specific heat = 6.4 Signup and view all the answers

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Description

"Test your knowledge on atomic limitations and atomic mass with this quiz! Learn about the shortcomings of the atomic theory in explaining the formation of molecules and the differences in atoms of different elements. Understand the concept of atomic mass and how it relates to the weight of an atom compared to carbon-1