Question

calculate total number of protons and neutrons in 0.8 g of oxygen atom. (answer only if u know how to solve )​

Answer 1

Atomic mass of Oxygen is 16 ( roughly)

No of Moles of oxygen= 0.8/16

=0.05

No of atom in 1 mole = 6.022 x 10^23

No of atom in 0.05 mole = 0.05 x 6.022 x 10^23

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎=3.011 × 10^22

No of protons in 1 oxygen atom = 8

No of protons in 3.011 × 10^22 oxygen atom

= 8 x 3.011 × 10^22

= 2.4088 x 10^23

Answer 2

Answer:

Atomic mass of Oxygen is 16 ( roughly)

No of Moles of oxygen= 0.8/16

=0.05

No of atom in 1 mole = 6.022 x 10^23

No of atom in 0.05 mole = 0.05 x 6.022 x 10^23

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎=3.011 × 10^22

No of protons in 1 oxygen atom = 8

No of protons in 3.011 × 10^22 oxygen atom

= 8 x 3.011 × 10^22

= 2.4088 x 10^23

Explanation: