Question

calculate the mass of 100 ca atoms in amu and gram ​

Answer 1

Concept:

The atomic unit mass is symbolized as AMU, AMU of an element is a measure of its atomic mass,

Given:

100 atoms of Ca.

Find:

The mass of 100 Ca atoms in AMU and gram.

Solution:

The mass of 1 atom of Calcium is 40 g.

So, the mass of 100 atoms of Calcium =  40 × 100 g = 4000 g = 4 kg

Hence, the mass of 100 atoms of Calcium is 4 kg.

The mass of 1 atom of Calcium is 40 AMU.

So, the mass of 100 atoms of Calcium =  40 × 100 AMU = 4000 AMU

Hence, the mass of 100 atoms of Calcium is 4000 AMU.

Hence, the mass of 100 Ca atoms in AMU is 4000 AMU and the grams is 4 kg. ​

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