The following data were obtained for solutions of carboxymethylcellulose flowing through a capillary viscometer.
Concentration (g/L)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.8
Time (s)
64.2
68.4
72.7
77.1
81.5
86.1
91.0
100.5


The Mark-Houwink-Sakurada parameters for carboxymethylcellulose are K = 5.37 × 10–5 Lg–1 and a = 0.73. What is the molecular weight of the carboxymethylcellulose in this experiment?