Question

0.25 g of an element M reacts with excess of fluorine to produce 0.547g of the hexafluoride MF6 . what is the element?

Answer 1

Answer:

i don't know

Explanation:

Answer 2

Answer:

Mo

Explanation:M+6F gives MF6

1moles of M gives 1moles of MF6

moles = given mass/molecular mass

let molecular mass of M be x

0.25/x=0.547/[x+19(6)]        {mass of F is 19}

we get x=96(appr)

which is equal to molecular mass of Mo

therefore Mo is the answer

hope it helps iit aspirants like me