An object of mass 1 kg contains 4 × 10²⁰ atoms. If one electron is removed for every atom of solid, the charge gained by solid in 1g is :

Explanation:

To find the charge gained by the solid when one electron is removed from each of its atoms, you can follow these steps:

1. Calculate the total number of electrons in 1 gram of the solid. Since there are 4 × 10^20 atoms in 1 kg, there are (4 × 10^20 / 1000) atoms in 1 gram.

2. Multiply the number of atoms in 1 gram by the charge gained by removing one electron. Each electron has a charge of approximately -1.6 × 10^-19 coulombs.

3. The total charge gained by the solid in 1 gram is the result of the multiplication from step 2.

Let's calculate it step by step:

Number of atoms in 1 gram = (4 × 10^20 / 1000) = 4 × 10^17 atoms

Charge gained by removing one electron from an atom = -1.6 × 10^-19 C

Total charge gained by the solid in 1 gram = (4 × 10^17) × (-1.6 × 10^-19) C

Now, calculate this expression to find the charge gained by the solid in 1 gram.

Final answer:

The charge gained by a solid when one electron is removed from each atom can be calculated by multiplying the charge of one electron by the number of atoms in the solid.

Explanation:

The question asks for the charge gained by a solid when one electron is removed from each atom of the solid. The charge gained by one atom can be calculated by multiplying the charge of one electron (1.602 × 10-19 C) by the number of atoms in one gram of the solid (4 × 1020 atoms/g). To find the total charge gained by the solid in 1g, we can multiply the charge gained by one atom by the number of atoms in 1g of the solid (1 mole = 6.02 × 1023 atoms).

Charge gained by one atom = 1.602 × 10-19 C

Number of atoms in 1g = 4 × 1020 atoms/g

Total charge gained by 1g of solid = Charge gained by one atom × Number of atoms in 1g

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