You might get help if you post this in the math section.
A summary of the Law of multiple proportions is that if A and B form more than one compound, and B1 is the amount of element B which reacts with a fixed mass of A in compound 1, and B2 is the amount of B which reacts with the same fixed mass of B to form compound 2, then the ratio B1:B2 will be small whole numbers.
This law is rather simplistic, and given the range of compounds known today the definition of 'small' is now rather large... but, to answer the question:
in compound one 1.14133g of B reacts with 1g of A. (1.14133=53.3/46.7)
1.5M NaOH so we've 1.5 moles of NaOH in 1L of solution
1L = 1000 ml
1.5 moles of NaOH ------------in------------- 1000 ml
0.75 moles of NaOH ----------in---------------x ml
x = 500 ml
<em><u>answer: C</u></em>
It releases energy (what I am saying in other words that "D. Releases" would be your answer)
