Question

Number of He atoms in 56 gram of helium​

Answer 1

Answer:

Convert into moles :a)56 grams of Helium atom b)12.044 × 10²³ atoms of Hydrogen c)160 grams of Oxygen Gas [O₂] ... See what the community says

Answer 2

Answer:

Number of He atoms in 56 gram of helium​ = 8.433 × 10²⁴ atoms

Explanation:

Gram atomic mass of He = 4g

6.023 × 10²³  atoms of He = 4g

?                     atoms of He = 56g

56/4 × 6.023 × 10²³ atoms

14 × 6.023 × 10²³ atoms

84.33 × 10²³ atoms

8.433 × 10²⁴ atoms