Question

If a mole were to contain 1×10^24 particles what would be the mass of 1 mole of oxygen

Answer 1

Given:

• If 1 mole = 1 × 10²⁴ particles

To find:

• Then mass of 1 mole of oxygen

Solution:

Given,

1 mole = 1 × 10²⁴

We know that

1 mole of Oxygen = 16g [ 1 mol= 6.02 × 10²³]

Now ,

For 1 mole of oxygen → 16g

For given 1 mole → ?

In other form

6.023 × 10²³ → 16g

1 × 10²⁴ → ?

Let ? be x

By cross multiplying

♦ 6.023 × 10²³ × x = 16 × 10²⁴

♦ 6.023x = (16 × 10²⁴)/10²³

♦ 6.023x = 160

♦ x = 160/6.023

♦ x = 26.56g

Hence , mass of 1 mole of oxygen = 26.56g . When ( 1 mole = 1 × 10²⁴ particles )