Answer:
Law of definite proportions, statement that every chemical compound contains fixed and constant proportions (by mass) of its constituent elements.
Answer: 0.147 grams
Explanation:
To calculate the moles :


According to stoichiometry :
2 moles of
require = 2 moles of
will require=
of 
Thus
is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 2 moles of
give = 3 moles of 
Thus 0.049 moles of
give =
of 
Mass of 
Thus 0.147 g of
will be produced from the given masses of both reactants.
On the edges or the outer magnetic fields