Question

Mass of sodium + nitrogen +oxygen+ oxygen+ oxygen =

Answer 1

Oxygen's atomic weight is 16.00 amu. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom!

Step-by-step explanation:

i looked it up ok

Answer 2

Mass of sodium + nitrogen +oxygen+ oxygen+ oxygen = =85 g/mol

Step-by-step explanation:

Molar mass is the mass of 1 mole of the substance and its unit is g/mol

We find the molar mass by just adding atomic mass of the elements present in the chemical formula of the compound

For example

`H_2 SO_4`

Atomic mass of H is 1.008 (approximately 1)

Atomic mass of S is 32

Atomic mass of O is 16

There are 2, H atoms 1, S atom and 4, O atoms

So, the molar mass of the compound
`H_2 SO_4` will be

`\\$=[(2 * 1)+(1 * 32)+(4 * 16)]$\\\\$=(2+32+64)=98 (g)/(m o l)$`

The question says 1, Na

1, N and

3, O

So the chemical formula we get is
`NaNO_3`

The molar mass of the compound
`NaNO_3` is

`\\$=[(1 * 23)+(1 * 14)+(3 * 16)]$\\\\$=(23+14+48)$`

=85 g/mol (Answer)