Convert Atomic mass unit to quarter (US)

Please provide values below to convert Atomic mass unit [u] to quarter (US) [qr (US)], or Convert quarter (US) to Atomic mass unit.

How to Convert Atomic Mass Unit to Quarter (Us)

1 u = 1.464344796276e-28 qr (US)

Example: convert 15 u to qr (US):
15 u = 15 × 1.464344796276e-28 qr (US) = 2.19651719441401e-27 qr (US)

Atomic Mass Unit to Quarter (Us) Conversion Table

Atomic mass unit	quarter (US)

Atomic Mass Unit

The atomic mass unit (u) is a standard unit of mass used to express atomic and molecular weights, defined as one twelfth of the mass of a carbon-12 atom.

History/Origin

The atomic mass unit was introduced in the early 20th century to provide a convenient scale for atomic weights. It was originally based on the mass of hydrogen but was later standardized to be one twelfth of the mass of a carbon-12 atom, which was adopted as a reference in 1961 by the IUPAC.

Current Use

The atomic mass unit is widely used in chemistry and physics to express atomic and molecular masses, facilitating calculations in molecular chemistry, nuclear physics, and related fields.

Quarter (Us)

A quarter (US) is a unit of weight equal to one-fourth of a pound, commonly used in measuring precious metals and other small quantities.

History/Origin

The quarter originated from the traditional British weight system and was adopted in the United States as a subdivision of the pound. It has historically been used in commerce and trade for precise measurements.

Current Use

Today, the quarter is primarily used in the United States for measuring precious metals, jewelry, and small quantities of certain commodities. It is part of the customary units in the 'Weight and Mass' category within common converters.

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