# Convert Gram to Atomic Mass Unit (gm to amu)

In next fields, kindly type your value in the text box under title [ From: ] to convert from gram to atomic mass unit (gm to amu). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].

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Definitions:

Gram (abbreviation: gm): is a SI (metric) system unit of mass. Where, at the temperature of melting ice, it is the absolute weight of a volume equal to the hundredth part of a metre cube of pure water.

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.

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## How to Convert Grams to Atomic Mass Units

### Example: How many atomic mass units are equivalent to 5.36 grams?

As;

1 grams = 6.024E+23 atomic mass units

5.36 grams = Y atomic mass units

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

Y equals 5.36 times 6.024E+23 over 1

(i.e.) Y = 5.36 * 6.024E+23 / 1 = 3.228864E+24 atomic mass units

Answer is: 3.228864E+24 atomic mass units are equivalent to 5.36 grams.

### 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 ) 20.74 gm

( ii ) 70.83 gm

( iii ) 87.5 gm

References