Question

What will be the number of particles in 36 g of carbon atoms? *



(a) 1.003 x 10^23

(b)2.008 x 10^23

(c)18.066 x 10^23

(d) 36.132 x 10^23

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Answer 1

Answer:

Thus, 3 moles of Carbon-12 will contain an equal number of Carbon atoms as 36 g of Carbon-12. The correct choice is c. 3 moles. 3 m o l e s .

Answer 2

Given:

Weight of carbon atoms= 36g

To find:

Number of particles in 36g of carbon atoms.

Solution:

We can solve the numerical by the following method.

We know that the atomic weight of carbon= 12

One mole of carbon (12g) contains $6.022 X 10^{23}$ (Avogadro's number) of particles.

∴12g = $6.022 X 10^{23}$ particles

Then,

36g =?

$\frac{36 X 6.022 X 10^{23} }{12}$

= $18.066 X 10^{23}$ particles

Therefore, 36g of carbon atoms contain $18.066 X 10^{23}$ particles.