Ethanol is a compound, not an element and so does not have an atomic number. It is composed of the elements carbon, hydrogen, and oxygen which have the atomic numbers 6, 1, and 8 respectively.
Ethane is a molecule. It doens't have an atomic number. It's component atoms total 24 from the two carbon atoms and six from the six hydrogen atoms.
+1
-3.
Ethane is C2H6, with a molar mass of 30g/mol. 60g of ethane is 2mol. Avogadro's number (# of particles in a mole) = 6.02x1023. Avogadro x 2mol = 1.2x1024 ethane molecules.
The chemical formula of ethane is C2H6; 18 hydrogen atoms.
The number of molecules in 15 g ethane is approx. 3,011.10e23.
Ethane is not an atom, but a molecule whose condensed formula is H3C - CH3
+1
-3.
Ethane is C2H6, with a molar mass of 30g/mol. 60g of ethane is 2mol. Avogadro's number (# of particles in a mole) = 6.02x1023. Avogadro x 2mol = 1.2x1024 ethane molecules.
The chemical formula of ethane is C2H6; 18 hydrogen atoms.
The number of molecules in 15 g ethane is approx. 3,011.10e23.
seven
the answer is that it is called a atomic number.
The atomic number is equal to the number of the protons in the atomic nucleus.
Atomic weight in atomic mass units = the number of protons + the number of neutrons. The number of protons is your atomic number. Subtract that from the atomic weight for the number of neutrons.
this elemnt has an atomic number that is double the atomic number of silicon?
Subtract the atomic number from the atomic weight.