Question

Q4. calculate the total no. of Atoms in
(1) 16mg of Helium.
(2) 16 kg of Helium.​

Answer 1

Explanation:

1 mole contains 6.022 x 1023 molecules

atomic mass of helium=4u

so, 16u/4u =4 molecules

The molar mass of He is 4 . so 16g=4moles and 4 x 6.022 x 1023=2.049 x 1023 molecules

Answer 2

Answer:

16 mg of helium = 16 mg helicopter

16 kg of helium = 16 kg helicopter

Explanation:

Make my answer as brainless