Question

total no of atoms in 4.4grams of CO2 is​

Answer 1

Answer:

0.3 $N_{A}$ or $1.806 * 10^{23}$

Explanation:

Let's use some unitary method.

1 mole of  $CO_{2}$ has mass 44g/mol.

So, if there are 1g of $CO_{2}$, number of moles must be= 1/44.

Given with 4.4g, we will have 4.4/44 = 0.1 mole.

Now, now, now.. question does not end here, we have to find number of particles too.

So, for 0.1 moles,0.1$N_{A}$ must be present. (Precisely,$6.022* 10^{22}$ molecules).

And that your Answe--

Whoops! Did you read, we have to find Total number of atoms?

A molecule of Carbon Dioxide has 3 atoms in its structure.

So, for $6.022* 10^{22}$ molecules, there must be $1.806 * 10^{23}$ atoms, or 0.3 $N_{A}$ atoms!

Remember to read the question carefully, I myself did such mistakes.

Kudos to you!