Question

The atomic mass of calcium (Ca) is 40g the number of moles in 60g of calcium​

Answer 1

Explanation:

The moles present in 60 g of calcium are 1.5 moles.

Answer 2

Answer:

1.5 mole

Explanation:

Given:

The atomic mass of calcium = 40g

The no. of moles present in 60g of Ca =?

Now

60g = 40g + 20g

Now,

Numbers of moles present in 40g = 1

∴ number of moles present in 20g = 1/2 =0.5

Now,

Numbers of moles present in 60g = 1 + 0.5 =1.5

Number of particles in it = 1.5 × 6.022 × 10²³ = 9.033 × 10²³ atoms