calculate the net electric charge of 1.25 moles of sodium ions ( a sodium ion consist of 11 protons and 10 eletrons).
To calculate the net electric charge of 1.25 moles of sodium ions, we need to determine the total number of ions in 1.25 moles and then calculate the net charge.
Step 1: Determine the Avogadro's number
Avogadro's number (NA) is the number of particles (atoms, molecules, ions) in one mole of a substance. It is approximately 6.022 x 10^23 particles/mole.
Step 2: Calculate the total number of sodium ions in 1.25 moles
Multiply the Avogadro's number by the number of moles:
Number of ions = 1.25 moles x (6.022 x 10^23 ions/mole)
Step 3: Calculate the net charge
Each sodium ion has a charge of +1 since it consists of 11 protons (+11) and 10 electrons (-10).
Net charge = Number of ions x charge per ion
Therefore, the net electric charge of 1.25 moles of sodium ions can be calculated by following the above steps.
To calculate the net electric charge of 1.25 moles of sodium ions, you need to determine the total charge of all the sodium ions in 1.25 moles.
Step 1: Calculate the total number of sodium ions in 1.25 moles.
Since 1 mole contains Avogadro's number of entities (6.022 x 10^23), you can multiply the number of moles by Avogadro's number:
1.25 moles x 6.022 x 10^23 = 7.5275 x 10^23 sodium ions
Step 2: Calculate the total charge of the sodium ions.
Each sodium ion has a charge of +1, which means it has one more proton (11) than electrons (10). So, the charge of each ion is +1e (where e represents the elementary charge).
To find the total charge of all the sodium ions, multiply the total number of sodium ions by the charge of one ion:
7.5275 x 10^23 x (1e) = 7.5275 x 10^23 Coulombs
Therefore, the net electric charge of 1.25 moles of sodium ions is 7.5275 x 10^23 Coulombs.