Question

the mass of 5 gram atoms of fluorine is
1) 950 a.m.u
2) 95 gr
3) 190 gr
4) 190 a.m.u

Answer 1

option number is

1) 950 a.m.u

hope it helps

Answer 2

Given:  5 gram atom of Fluorine

To Find: Mass of given Fluorine atoms

Solution:

• The term gram atom refers to 1 mole.
• In this question we have been given 5 moles of Fluorine.
• As we know,

                      Mass of 1 mole of fluorine atoms = 19 g

                 ∴ Mass of 5 moles of Fluorine atoms = 19 × 5 = 95g

Hence mass of 5 gram atoms of Fluorine is option (2) 95 g.