Question

Calculate the number of atoms present in 12g Helium[Hint:He=4u]

Pls solve this urgently
(help needy peoples,god will always give u gud points in brainly.in)​

Answer 1

Answer:

18.07 * 10²³ atoms

Explanation:

1 mole of He contains = 6.022 * 10²³ particles = molar mass (4 g)

No. of  atoms in 12 g He  = (12 * 6.022 * 10²³) ÷ 4  

= (72.264  * 10²³) ÷ 4

=18.066 * 10²³ atoms.

= 18.07 * 10²³ atoms.

Answer 2

Answer:

Common management practices in dairy and poultry farming are:

(i) Proper shelter facilities and their regular cleaning.

(ii) Some basic hygienic conditions such as clean water, nutritious food, etc.

(iii) Animals are kept in spacious, airy, and ventilated place.