Question

Calculate the no. Of electron present in 10 g calcium.

Answer 1

Answer:

• wt. of Ca = 10g
• At. wt. of Ca = 40g

No. of mol = Given mass / Molecular mass = 10/40 = 1/4g

Answer 2

Answer:

.wt.of Ca = 10g

wt.of Ca = 40g

No. of Mole = given mass / atomic mass

= 10/40

1/4 mol