Answer : The mass of
are, 117.6 grams.
Explanation :
First we have to calculate the moles of
.
As,
molecules of
present in 1 mole of

So,
molecules of
present in
mole of

Now we have to calculate the mass of
.

Molar mass of
= 98 g/mole

Therefore, the mass of
are 117.6 grams.