**Definitions:**

**Long Ton** (abbreviations: **Lton, or ton imperial**): is a non-SI metric unit of mass. Although, it is used principally as a unit of mass, it has acquired a number of meanings and uses over long years. It is equivalent to 1,016 kilograms (Kg), or approximately 2,239.859 pounds (lb), or 1.119929 short tons (US), or 1.016 metric tons.

**Atomic Mass Unit** (abbreviations: **amu, or u**): also known as dalton (symbol: Da), is a standard unit of mass that used on an atomic or molecular scale (atomic mass). One unified atomic mass unit is about the mass of one nucleon (either a single proton or neutron) and equivalent to 1 g/mol.

## How to Convert Long Tons to Atomic Mass Units

*Example: How many atomic mass units are equivalent to 19.18 Long tons?*

As;

1 Long tons = 6.1206636408804E+29 atomic mass units

19.18 Long tons = Y atomic mass units

Assuming Y is the answer, and by criss-cross principle;

Y equals 19.18 times 6.1206636408804E+29 over 1

(i.e.) Y = 19.18 * 6.1206636408804E+29 / 1 = 1.1739432863209E+31 atomic mass units

Answer is: 1.1739432863209E+31 atomic mass units are equivalent to 19.18 Long tons.

*Practice Question: Convert the following units into amu:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 99.76 lton

( ii ) 4.6 lton

( iii ) 74.82 lton