Question

1. Calculate the number of moles for the
following:
(i) 52 g of He (finding mole from
mass)
(i) 12.044 x 1023 number of He atoms
(finding mole from number of
particles).​

Answer 1

Answer:

(I) n= m/M (M= molar mass)

n= 52/4

n= 13 moles

(ii) n= given moles/ Avogadro no.

n= 12.044×1023/ 6.022×1023

n= 2 particles

Answer 2

Answer:

hey mate here is your answer

Explanation:

1) n = m/M

n = 52/4 = 13

so, n = 13 moles.

2) n = 12.044× 10²³ / 6.022 ×10²³

n = 2 particles.

Hope it will help you please mark my answer as a brainliast Plzzz