Question

Define atomic mass unit (amu). Calculate the mass of One oxygen atom
In terms of amu

Answer 1

Answer:

To calculate the mass of a single atom, first, look up the atomic mass of oxygen from the periodic table.

This number 16, is the mass in grams of one mole of oxygen. One mole of carbon is 6.022 x 10^23 atoms of carbon (Avogadro’s Number). This relation is then used to 'convert' a carbon atom to grams by the ratio:

mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10^23 atoms

Plugin the atomic mass of carbon to solve for the mass of 1 atom:

> mass of 1 atom = mass of a mole of atoms / 6.022 x 10^23

> mass of 1 Oxygen atom = 16 g / 6.022 x 10^23 atoms

> mass of 1 Oxygen atom =2.65 x 10^-23 g.

Answer 2

Answer:

atomic mass unit is 1 upon 12 carbon atom mass of 1 oxygen atom is 6.022multiply 10 23