Answer:
1.Therefore ethanol has : 2 mols of carbon, 1 mole of oxygen and 6 mols of hydrogen. The requested mass percents are: 52.14% ; 34.77% ; 13.15%.
2. You should get 14.007(2) which is 28.014
3. I have no idear
4.idk
5. im sorry man this is too hard
Explanation:
Answer:
is 5 x 2 take away x76 x 10divide 5
ez
Francium oxide Fr₂O
Francium, as well as sodium, is in 1A group. Its valency is equal to unit.
The problem above is simply a conversion problem. We only need a conversion factor to convert the units from amu to kg. From a conversion table, we will see that 1 amu is equal to 1.66x10^-27 kg. We convert as follows:
0.13261 amu ( <span>1.66 × 10^-27 kg / 1 amu ) = 2.20x10^-28 kg </span>
Let x be the oxidation state of S.
Therefore,
2x + 3(-2) = -2
2x = -2 + 6
2x = 4
x =2.
Hence oxidation state of S is +2.
Hope this helps!