Answer:
0.152 moles
Explanation:
Given that:
The mass of the oxygen gas produced = 4.87 g
Also, The molar mass of oxygen gas, [tex]O_2[/tex] = [tex]2\times 16\ g/mol[/tex] = 32 g/mol
The formula for the calculation of moles is shown below:
[tex]moles = \frac{Mass\ taken}{Molar\ mass}[/tex]
Thus,
[tex]Moles= \frac{4.87\ g}{32\ g/mol}[/tex]
[tex]Moles=0.152\ mol[/tex]
Both given values and the answer is in 3 significant digits.
