Total Number of Electrons in 18ml of Water

Water is a chemical compound consisting of two hydrogen atoms and one oxygen atom. Its molecular formula is H2O. In this question, we need to find out the total number of electrons present in 18ml of water.

Avogadro's Number

Before we can calculate the total number of electrons, we need to understand Avogadro's number. Avogadro's number is defined as the number of particles in one mole of a substance. It is equal to 6.02 x 10^23. One mole of a substance contains the same number of particles as there are atoms in exactly 12 grams of carbon-12.

Calculating the Total Number of Electrons

To calculate the total number of electrons present in 18ml of water, we first need to find out the number of moles of water in 18ml. We know that the molar volume of any gas at standard temperature and pressure is 22.4 liters. Since water is not a gas, we need to convert the volume of 18ml to liters.

18ml = 0.018 liters

Now, we can calculate the number of moles of water:

Number of moles = Volume of water / Molar volume of water

Number of moles = 0.018 / 0.0224

Number of moles = 0.8036

Since each water molecule contains three atoms (two hydrogen atoms and one oxygen atom), we can calculate the total number of atoms in 0.8036 moles of water:

Total number of atoms = Number of moles x Avogadro's number x 3

Total number of atoms = 0.8036 x 6.02 x 10^23 x 3

Total number of atoms = 1.448 x 10^24

Finally, we can calculate the total number of electrons by multiplying the total number of atoms by the number of electrons in each atom:

Total number of electrons = Total number of atoms x Number of electrons per atom

Total number of electrons = 1.448 x 10^24 x 8

Total number of electrons = 1.1584 x 10^25

Therefore, the correct option is d) 6.02×10^25.