The total number of electrons in 1.6g of CH4 to that of 1.8g of H2O is?
To find the total number of electrons in a given substance, we need to know the molar mass of the substance and the Avogadro's number.
First, we need to determine the number of moles of each substance. We can do this by dividing the given mass of each substance by their respective molar masses.
The molar mass of CH4 (methane) is:
C = 12.01 g/mol
H = 1.008 g/mol
Molar mass of CH4 = (12.01 g/mol) + (4 * 1.008 g/mol) = 16.04 g/mol
Number of moles of CH4 = mass of CH4 / molar mass of CH4
Number of moles of CH4 = 1.6 g / 16.04 g/mol ≈ 0.0998 mol
The molar mass of H2O (water) is:
H = 1.008 g/mol
O = 16.00 g/mol
Molar mass of H2O = (2 * 1.008 g/mol) + (16.00 g/mol) = 18.02 g/mol
Number of moles of H2O = mass of H2O / molar mass of H2O
Number of moles of H2O = 1.8 g / 18.02 g/mol ≈ 0.0999 mol
Now, we need to calculate the total number of electrons in each substance. To do this, we use Avogadro's number, which is defined as 6.022 x 10^23 electrons per mole.
The total number of electrons in CH4 = Number of moles of CH4 x Avogadro's number
Total number of electrons in CH4 = 0.0998 mol x 6.022 x 10^23 electrons/mol
The total number of electrons in H2O = Number of moles of H2O x Avogadro's number
Total number of electrons in H2O = 0.0999 mol x 6.022 x 10^23 electrons/mol
Now, we can calculate the ratio of the total number of electrons in CH4 to the total number of electrons in H2O:
Ratio = (Total number of electrons in CH4) / (Total number of electrons in H2O)
You can plug in the values we calculated to find the answer.
determine the moles of each.
then, add the atomic number of the elements; eg, CH4=6+1*4=10. That will be the number of electrons per molecule.
Numberelectrons=moles*AvagNumber*electronsPerMolecule