Question

the mass of 12.044×10 to the power of 23 number of calcium molecule is​

Answer 1

Given:-

→Number of particles = 12.044×10²³

To find:-

→Mass of 12.044×10²³ number of calcium molecule

Solution:-

=>Molecular mass of Calcium = 40u

=>Molar mass of Calcium = 40g

=>Avogadro number = 6.022×10²³

We know that:-

Number of moles:-

Given no of particles/Avogadro Number

=>12.044×10²³/6.022×10²³

=>2 moles

Now:-

Mass=No of moles×Molar mass

=>2(40)

=>80g

Thus,the required mass of Calcium molecule is 80g.