You are to determine the mass of O2 that can be produced from 25 grams of HgO. Don't forget to balance the equation first!
this is the equation: HgO ? Hg + O2
Are you unable to balance the equation yourself? How many HgO molecules does it take to have enough O atoms to make one O2?
We'll be glad to critique your work.
No I know how to balance the equation. But i am having problems determining the mass of O2 that can be produced from 25 grams of HgO.
To determine the mass of O2 that can be produced from 25 grams of HgO, we first need to balance the equation:
HgO → Hg + O2
Balancing the equation:
The equation has one Hg atom on the left side and one Hg atom on the right side. The equation also has one O atom on the left side, so to balance it, we need one O atom on the right side.
HgO → Hg + O2
Now that the equation is balanced, we can calculate the molar mass and use stoichiometry to find the mass of O2 produced.
Calculating the molar mass:
HgO: The molar mass of Hg is approximately 200.59 g/mol, and the molar mass of O is approximately 16.00 g/mol. To find the molar mass of HgO, we add the molar masses of Hg and O together.
Molar mass of HgO = (molar mass of Hg) + (molar mass of O)
Molar mass of HgO = 200.59 g/mol + 16.00 g/mol
Molar mass of HgO = 216.59 g/mol
Using stoichiometry:
Now that we have the molar mass of HgO, we can use stoichiometry to relate it to the mass of O2 produced.
According to the balanced equation, the mole ratio between HgO and O2 is 1:1. This means that for every 1 mole of HgO, we will produce 1 mole of O2.
To find the number of moles of HgO in 25 grams, we use the formula:
Number of moles = Mass / Molar mass
Number of moles of HgO = 25 g / 216.59 g/mol
Now, since the mole ratio between HgO and O2 is 1:1, the number of moles of O2 produced will be the same as the number of moles of HgO.
Finally, to find the mass of O2 produced, we multiply the number of moles of O2 by its molar mass:
Mass of O2 = Number of moles of O2 × Molar mass of O2
Substituting the values we found earlier:
Mass of O2 = (25 g / 216.59 g/mol) × (molar mass of O2)
Please note that the molar mass of O2 is approximately 32.00 g/mol.
By plugging in and calculating the above equation, you should be able to determine the mass of O2 that can be produced.