Question

The number oxygen atom in 72 g of water

Answer 1

Answer:

molar mass of oxygen is 16g meaning 16g of oxygen contains 6.022*10^23 atoms of oxygen

molar mass of H2O is 18g soin 72g there are 4moles of H2O so there are 5moles of oxygen in it also 1 mole of O is 16g 4moles of O is 16*4=64

no. of atoms = 64*6.022*10^23

=385.408*10^23 atoms

Explanation:

Answer 2

Answer:

the actual answer is...4 moles

Explanation:

please mark me as the brainliest.....