Answer:
No question so I'm just taking the points
Answer:
Fe3(PO4)2
Explanation:
calculate the molar mass for each of the following compounds 7. PbSO
8. Ca(OH)2
9. Na3PO4
10. (NH4)2CO3
11. C6H12O6
12. Fe3(PO4)2
13. (NH4)2S
14. Zn(C2H3O2)2
Make note of it and learn from her mistakes :)
1.8 moles of oxygen atoms are present in 30.5 grams of hydrogen peroxide.
<u>Explanation:</u>
First we have to convert the given weight of hydrogen peroxide to molar mass of hydrogen peroxide. So for this, we have to divide the given weight with the molecular mass of hydrogen peroxide.

So,

Second step, in this moles, 2 molecules of oxygen are present. Thus 1 mole of Hydrogen peroxide consists of 2 moles of oxygen. Then,

So, 30.5 grams of hydrogen peroxide consists of 1.8 moles of oxygen.