Question

Determine the number of atoms in 5.5grams of calcium?​

Answer 1

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Answer 2

Answer:

The number of atoms in 5.5grams of calcium is $82.8\times10^{21}$.

Explanation:

1 mole of any compound is equal to the molar mass of the compound.

Again, 1 mole of any compound contains Avogadro's number of atoms i.e., $6.023\times 10^{23}$.

Again , Molar mass of calcium is 40 gram.

Now,

40 gram of calcium contains $6.023\times 10^{23}$ number of atoms.

5.5 gram of calcium contains number of atoms,

$\frac{6.023\times 10^{23}\times 5.5}{40}=0.828\times10^{23}\\\frac{6.023\times 10^{23}\times 5.5}{40}=82.8\times10^{21}$

5.5 gram of calcium has $82.8\times10^{21}$ number of atoms.

To know more about number of atoms in any compound, click on the link given below,

https://brainly.in/question/22505147

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