BEZ IT THE structure of the HEXANE ITSELF
OTHERS R THE ISOMER OF THIS STRUCTURE.
AND THIS STRUCTURE DON'T CONTAIN A CARBON WITH LESS THAN 2 HYDROGEN ATOMS WHICH R COMPULSORY FOR A STRUCTURE TO BE A ISOMER
Answer : The number of moles of 
and mass of is 0.50 mole and 27 grams respectively.
Solution : Given,
We are assuming that the reactant indicated in boldface is 
. So,
Moles of = 0.50 mole
Molar mass of = 53.5 g/mole
First we have to calculate the moles of
The balanced chemical reaction is,
From the reaction, we conclude that
As, 1 mole of react to give 1 mole of
So, 0.50 moles of react to give 0.50 moles of
The number of moles of is, 0.50 moles.
Now we have to calculate the mass of
The mass of is, 27 grams.
A and B should be correct
Answer:
CaCN₂
Explanation:
A compound of calcium, carbon and nitrogen CaₐCₓNₙ in oxygen will burning producing:
CaₐCₓNₙ + O₂ → aCaO + xCO₂ + nNO₂
Moles of the oxides CaO, CO₂, NO₂ are:
CaO: 3.106g ₓ (1 mole / 56.08g) = <em>0.0554 moles of CaO = moles of Ca</em>
CO₂: 2.439g ₓ (1mole / 44g) = <em>0.0554 moles CO₂ = moles C</em>
NO₂: 5.097g ₓ (1mole / 46g) = <em>0.111 moles NO₂ = moles N</em>
Empirical formula is the chemical formula that represents the simplest ratio of elements in a compound.
Having as basis 0.0554 moles (The lower number of moles):
0.0554 moles Ca / 0.0554 = 1 Ca
0.0554 moles C / 0.0554 = 1 C
0.111 moles N / 0.0554 = 2N
Thus, the compound CaₐCₓNₙ has as empirical formula:
Ca₁C₁N₂ = <em>CaCN₂</em>
