Question

How many silver atoms are there in 3.78g of silver?

Answer 1

2.1 x 10²²atoms

Explanation:

Given parameters:

Mass of silver = 3.78g

Unknown:

Number of atoms of silver = ?

Solution:

To solve this problem, we first find the number of moles of the silver from the given mass.

  Number of moles = $\frac{Mass}{Molar mass}$

Molar mass of Ag  = 108g/mole

   Number of moles = $\frac{3.78}{108}$  = 0.035mole

Now;

  A mole of any substance contains 6.02 x 10²³ atoms

     0.035 moles of Ag will contain 0.035 x 6.02 x 10²³ = 2.1 x 10²²atoms

learn more:

Number of moles  brainly.com/question/13064292

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