Question

prove that 100 gm of phosphorus and 100gm of sodium but it doesn't contain the same number of atoms​

Answer 1

Answer:

Av- 6.022 X 10²³

B. O - bond oder

1 mol of P (phosphorus) - (B.O X Av)

[1 mol of P = molar mass of P ]

there for 1 g of P = (B.O X Av) / (molar mass of p)

so, 100g of p = 100 (1 X Av) /(molar mass of p)

= 2 X 10^24 atoms

1 mol of Na (Sodium) - (B.O X Av)

[1 mol of P = molar mass of Na ]

there for 1 g of P = (B.O X Av) / (molar mass of Na)

so, 100g of p = 100 (1 X Av) /(molar mass of Na)

= 2.61 X 10^24 atoms

Hence, 100g of P is not equal to 100g of Na.