Respuesta :
The mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g
Stoichiometry
From the question, we are to determine the mass of the given atoms of cadmium
First, we will calculate the number of moles of cadmium present
Using the formula,
[tex]Number\ of\ moles = \frac{Number\ of\ atoms}{Avogadro's\ constant}[/tex]
Then,
Number of moles of Cd present = [tex]\frac{532.0}{6.022 \times 10^{23} }[/tex]
Number of moles of Cd present = 8.83427 × 10⁻²² moles
From the given information,
1 mole of Cd has a mass of 112.41 g
Therefore,
8.83427 × 10⁻²² moles will have a mass of 8.83427 × 10⁻²² × 112.41 g
8.83427 × 10⁻²² × 112.41 = 9.9306 × 10⁻²⁰ g
≅ 9.93 × 10⁻²⁰ g
Hence, the mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g
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