Question

Calculate mass of 10 atoms of hydrogen ​

Answer 1

10.00784 u

Explanation:

1 atom of hydroden =1.00784u

10 atoms of hydrogen =10*1.00784 u

=10.00784 u

Answer 2

Answer:

mass of 6.02 × 10²³ atoms of hydrogen = 1g

Therefore mass of 1 atom of hydrogen

= 1

___________

6.02 × 10²³ g

Therefore : mass of 12 × 10¹⁴ atom of hydrogen

= 12 × 10¹⁴

___________

6.02 × 10²³

= 1.99 × 10 raise to minus ⁹