Question

43 In a polymer there are 150 molecules of a molecular weight 200, 400
molecules of molecular weight 800 and 500 molecules of molecular weight
2000. Calculate number average molecular weight.
A)
C)
1285
704.76
B)
D)
1004.76
804.76​

Answer 1

ANSWER-

D. 1004.76

PLEASE MARK ME BRAINLIST ☺️...