Ihad 10 molecules of ag and an unlimited supply of h2s. how many molecules of ag2s could i produce?

5.12 molecules of Ag₂S could be produced from 10 molecules of silver.

Explanation:

Given data:

Molecules of Ag = 10 molecules

Molecules of Ag₂S = ?

Solution:

First of all we will convert the number of molecules into gram.

10/ 6.022 ×10²³ = 1.7 × 10⁻²³ mol

Mass of Ag:

Number of moles = mass/ molar mass

Mass = Number of moles × molar mass

Mass = 1.7 × 10⁻²³ mol × 107.9 g/mol

Mass = 183.43 × 10⁻²³ g

Chemical equation:

2Ag  + H₂S  →  Ag₂S + H₂

Now we will compare the moles of silver with Ag₂S from balanced chemical equation.

         Ag           :         Ag₂S

          2             :          1

     1.7 × 10⁻²³    :          1/2 ×1.7 × 10⁻²³  = 0.85 × 10⁻²³ mol

Molecules of Ag₂S:

0.85 × 10⁻²³ × 6.022 ×10²³ = 5.12 molecules

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