How many grams of O2 can be prepared from the thermal

Solution 72P

Step 1:

Here, we are going to calculate the mass of O2 that can be prepared from the thermal decomposition of 4.27 kg of HgO.

The balanced equation for the decomposition of HgO is

2HgO(s) 2Hg(s) +O2(g)

Given that

The mass of HgO =4.27 kg =4.27

The molar mass HgO=216.59 g/mol

Thus,

The mass of O2 =(4.27 HgO)

                  = 315.43 g O2

Therefore, the mass of O2 that can be prepared from the thermal decomposition of 4.27 kg of HgO is 315.45 g.